William is a Tier B Guard of Order hero in Last Z. He is mainly used as an early support hero for troop training and secondary formations. His best troop type is Rider, which matches the Guard of Order faction.
William is not a main combat carry. His biggest value comes from his troop training speed bonus, while his combat skills are mostly useful in the early game or when your hero roster is still limited.
This Last Z William guide covers his skills, best use, formation role, gear priority, upgrade order, F2P value, mistakes to avoid, and whether William is worth investing in.
William Overview
William is a low-rarity Guard of Order support hero. He is easy to access through Club recruitment and can help new players during the first stage of the game.
| Detail | William Information |
|---|---|
| Hero | William |
| Tier | B |
| Faction | Guard of Order |
| Role | Support / troop training |
| Best Troop Type | Rider |
| Best Position | Secondary formations |
| How to Get | Hero recruitment at the Club |
| Best Use | Troop training support, early game, secondary formations |
| Investment Priority | Low |
William is best treated as a helper hero. Use him while your account is still developing, then replace him in combat once stronger S-rarity Guard of Order heroes are available.
Quick William Summary
| Category | Recommendation |
| Best Role | Troop training support / backup formation filler |
| Best Formation | Guard of Order Rider formation |
| Best Position | Secondary formations |
| Best Skill Focus | Well Trained and Explosive Grenade |
| Best Players | Beginners, F2P players, early secondary march users |
| Replace Later? | Yes, with stronger Guard of Order heroes |
William can help early accounts, but he should not be built like a long-term PvP hero. Keep his investment light and practical.
Is William Good in Last Z?
William is good for early support, but he is not a strong long-term combat hero.
He is useful because:
- He is easy to obtain.
- He belongs to Guard of Order.
- He works with Rider troops.
- His troop training speed bonus helps account growth.
- He can fill secondary formations.
- He can use spare low-rarity resources.
- He does not need premium hero access.
The downside is his low rarity. Tier B heroes are not designed to compete with strong S-rarity heroes in serious PvP or late-game content. William should help your account early, not become your main investment target.
William Faction: Guard of Order
William belongs to the Guard of Order faction. Guard of Order is commonly matched with Rider troops, so Riders are the best troop choice when using him.
| Faction Detail | Information |
| Faction | Guard of Order |
| Best Troop Match | Rider |
| Formation Style | Durable frontline with Rider support |
| Strong Matchup | Wings of Dawn |
| Weak Matchup | Blood Rose |
| Best Use for William | Secondary Guard of Order support |
Guard of Order teams are strongest when they are built around Rider synergy and proper hero placement. William can help as a temporary support hero, but stronger Guard of Order heroes should take the main combat slots later.
Why Guard of Order Matters for William
William gives better value when used with Guard of Order heroes. His Faction Defense talent increases Guard of Order hero Defense, which makes him more useful in a faction-focused setup than in a random mixed team.
Still, William’s bonus is small compared to stronger heroes. Use him when you need support, but do not delay your S-rarity upgrades for him.
William Skills Explained
William’s skills focus on basic damage, grenade damage, troop training speed, and Guard of Order faction Defense.
| Skill | Type | Effect | Practical Use |
| Reinforced Bullet | Normal Attack Boost | Increases normal attack damage factor | Improves basic damage |
| Explosive Grenade | Active Skill | Throws grenades that damage enemies in an explosion area | Main combat skill |
| Well Trained | Support Skill | Increases troop training speed | Best long-term support value |
| Faction Defense | Exclusive Talent | Increases Guard of Order hero Defense | Best faction support value |
William’s exact skill values may vary depending on star level, server version, translation, and future updates. Always compare with your in-game hero screen before spending resources.
Reinforced Bullet
Reinforced Bullet improves William’s normal attack damage. This is a basic damage skill and should not be your main reason for upgrading him.
| Upgrade Level | Bonus |
| Star Level 1 | Damage coefficient +30 |
| Star Level 2 | Damage coefficient +30 |
| Star Level 3 | Damage coefficient +30 |
| Star Level 4 | Damage coefficient +40 |
| Star Level 5 | Damage coefficient +70 |
This skill only matters when William is actively fighting. Since William is mostly a support and secondary formation hero, Reinforced Bullet should be a low priority.
Explosive Grenade
Explosive Grenade is William’s active combat skill. He throws grenades in a chosen direction and damages enemies within the explosion range.
| Upgrade Level | Bonus |
| Star Level 1 | Damage coefficient +60 |
| Star Level 2 | Damage coefficient +60 |
| Star Level 3 | Damage coefficient +60 |
| Star Level 4 | Damage coefficient +80 |
| Star Level 5 | Damage coefficient +140 |
This is William’s best combat skill. If you still use him in an early formation, Explosive Grenade gives more value than his normal attack boost.
Well Trained
Well Trained is William’s most important skill. It increases troop training speed, which helps you rebuild and train troops faster.
| Upgrade Level | Bonus |
| Base Effect | Troop training speed +30% |
| Star Level 1 | Troop training speed +2% |
| Star Level 2 | Troop training speed +2% |
| Star Level 3 | Troop training speed +3% |
| Star Level 4 | Troop training speed +3% |
| Star Level 5 | Troop training speed +5% |
This is the main reason William is useful. Faster troop training helps after PvP losses, alliance fights, events, and daily troop-building goals.
Faction Defense
Faction Defense is William’s faction talent. It increases Guard of Order hero Defense by 5%.
| Talent | Effect |
| Faction Defense | Guard of Order hero DEF +5% |
This bonus is not huge, but it can help early Guard of Order formations survive a little longer.
Best Use for William
William is best used as a troop training support hero and secondary formation filler. He should not be treated as a main combat hero.
| Game Stage | William Value | Recommendation |
| Early Game | Useful | Use if your roster is limited |
| Mid Game | Low to Decent | Keep only for support or secondary formations |
| Late Game | Low | Replace in combat with stronger heroes |
| PvE | Usable early | Not worth heavy investment |
| PvP | Weak | Avoid using as a main PvP hero |
| Account Growth | Decent | Well Trained helps troop training |
William is useful because of his support value. Once your roster improves, his role should shift away from active combat.
Best Formation for William
William is best used in secondary formations. He is not a hero you should force into your main march once better heroes are available.
| Position | Recommended Use | William Fit |
| Main Formation | Strong S heroes preferred | Not recommended long term |
| Secondary Formation | Support and filler hero | Best role |
| Guard of Order Team | Works with Rider troop setup | Usable |
| Mixed Team | Temporary early use only | Acceptable early |
| Late-Game Main Team | Orange heroes preferred | Replace later |
A balanced Last Z formation usually uses durable heroes in the front row and damage heroes in the back row. Since William is mainly a support hero, his position matters less than stronger frontline or DPS heroes.
Recommended William Formation Setup
| Slot | Hero Role |
| Front Row 1 | Main Guard of Order tank |
| Front Row 2 | Second defense hero |
| Back Row 1 | Main Guard of Order DPS |
| Back Row 2 | Secondary DPS or support |
| Back Row 3 | William or another support filler |
Use William only when you do not have a stronger hero for the slot. Once your roster improves, move him out of active combat.
Best William Team Strategy
William works best as a low-investment support piece for Guard of Order Rider teams. His troop training value can help your account, but his combat value is too low for serious main formation use.
| Team Style | How It Works | William Value |
| Full Guard of Order | Uses 5 Guard of Order heroes | Best faction identity |
| 3 Guard of Order + 2 Flex | Keeps Guard core while adding stronger heroes | Good while developing |
| Mixed Strongest Heroes | Uses your best available heroes | Fine only early |
| Secondary Formation | Uses William after main team improves | Best long-term role |
| Training Support | Uses William mainly for Well Trained | His main useful role |
William should support your account, not drain your best resources. Use him for training speed and backup formations while your main team receives the serious upgrades.
Practical Team Tip
Use William for his training support, not for damage. If you need combat power, stronger Guard of Order heroes will give far better results.
Best Heroes to Pair with William
William should be paired with stronger Guard of Order heroes who can carry the real combat value while he provides support or fills a backup slot.
| Pairing Type | Best Hero Role | Why It Works |
| Main Tank | Guard of Order Defense hero | Handles frontline survival |
| Main DPS | Guard of Order Attack hero | Carries damage while William supports |
| Rider Buffer | Hero with Rider bonuses | Supports Guard of Order troop synergy |
| Full Faction Core | 5 Guard of Order heroes | Improves faction consistency |
| Secondary March Hero | Extra support or filler hero | Helps build backup formations |
Stronger Guard of Order heroes such as Mia, Sakura, Harleyna, Chinatsu, Evelyn, Amber, and Dodemeki should usually take priority when available.
William Gear Priority
William should not receive your best gear. Since he is a Tier B support hero, use spare gear only.
| Gear Priority | Stat Focus | Why It Matters |
| 1 | Troop capacity | Adds more formation value if deployed |
| 2 | HP / survivability | Helps him stay alive in backup formations |
| 3 | Defense | Useful if he takes damage |
| 4 | Skill damage | Improves Explosive Grenade |
| 5 | Attack | Low priority because he is not a main DPS |
Gear Tip
Do not put premium gear on William. Use leftover gear and move your best equipment to S-rarity heroes in your main five.
William Skill Upgrade Priority
William’s skill priority should focus on training value first, then basic combat value if you still use him in a formation.
| Priority | Skill | Why Upgrade It |
| 1 | Well Trained | Best troop training support value |
| 2 | Explosive Grenade | Best active combat skill |
| 3 | Faction Defense | Small but useful Guard of Order support |
| 4 | Reinforced Bullet | Lowest priority basic damage boost |
Practical Upgrade Advice
Upgrade Well Trained first if you want long-term value from William. If he is still fighting in an early formation, upgrade Explosive Grenade next.
Do not invest heavy EXP, gear materials, or rare upgrade items into William while your S heroes are still unfinished.
William Star Upgrade Priority
William is a Tier B hero, so star upgrades should be very low priority. Use only spare low-rarity fragments or resources.
| Star Level | Recommendation |
| 1 Star | Fine if you use him early |
| 2 Stars | Useful only for minor support improvement |
| 3 Stars | Good enough for most players |
| 4 Stars | Only with spare resources |
| 5 Stars | Very low priority unless all important heroes are already handled |
William’s Well Trained skill improves with stars, but you should not delay S heroes just to max a Tier B support hero.
Is William Worth It for F2P Players?
Yes, William is worth using for F2P players early, but only with light investment.
| F2P Situation | Recommendation |
| No full S team yet | Use William if needed |
| Need troop training support | Useful |
| Need secondary formation fillers | Fine |
| Low on EXP and books | Save resources |
| Already have strong S heroes | Move William out of combat |
William is accessible, but accessibility does not make him a priority hero. His job is to help early and support training, not to replace stronger heroes.
Is William Worth It for Low Spenders?
For low spenders, William is mostly a temporary support hero. He can help early, but your main spending and upgrade focus should go toward stronger S-rarity heroes.
| Low Spender Goal | William Recommendation |
| Early progression | Usable |
| Troop training support | Useful |
| Main PvP march | Not recommended |
| Secondary march | Acceptable |
| Long-term competitive play | Replace with orange heroes |
Low spenders should avoid treating William as a core hero. His training passive is useful, but he does not scale like stronger Guard of Order S heroes.
William Upgrade Priority
Here is the safest upgrade order for William.
| Upgrade Area | Priority | Notes |
| Level | Low | Do not overlevel him |
| Stars | Low to Medium with spare resources | Only if you use him for support |
| Well Trained | High for William | Best support value |
| Explosive Grenade | Medium | Best combat skill if deployed |
| Faction Defense | Medium | Small Guard of Order defense value |
| Reinforced Bullet | Low | Basic damage only |
| Gear | Low | Use spare gear only |
Best Upgrade Stopping Point
For most players, William should stay at a low-to-moderate support level. Upgrade Well Trained if you want the training speed value, then save your serious resources for orange heroes.
Best Strategy for Using William in PvP
William is not a good long-term PvP hero. He can only help in very early fights or weak secondary marches.
| PvP Situation | William Value |
| Early server fights | Usable if roster is limited |
| Fighting weaker players | Sometimes useful |
| Fighting Wings of Dawn | Better matchup for Guard of Order |
| Fighting Blood Rose | Risky |
| Secondary PvP march | Low to decent |
| Main competitive PvP | Not recommended |
William’s low rarity limits his PvP value. Even with faction advantage, stronger S heroes will usually outperform him.
PvP Tip
Do not send William as part of your main PvP march once you have stronger orange heroes. Keep him as a support or backup option.
Best Strategy for PvE and Troop Training
William’s best value is troop training support, not PvE damage.
| PvE / Growth Content | Recommendation |
| Early creep fights | Usable |
| Campaign progression | Limited |
| Boss fights | Low priority |
| Resource fights | Usable if roster is weak |
| Troop training | Good |
| Secondary marches | Usable |
If you train troops often, William’s Well Trained skill can help. This is especially useful after PvP losses, alliance fights, or events where you need to rebuild troops quickly.
Common Mistakes to Avoid with William
Avoid these mistakes when building William:
- Over-investing before S heroes
William is useful only as support. Your orange heroes should take priority. - Using William as a main combat hero
He is not built to carry PvP or late-game PvE. - Ignoring Well Trained
His troop training skill is his main value. - Giving him your best gear
Save your best gear for main formation S heroes. - Upgrading Reinforced Bullet first
Well Trained and Explosive Grenade give better value. - Forcing Guard of Order without the right roster
Guard of Order works best when you have enough strong Rider-focused heroes. - Ignoring faction counters
Guard of Order can beat Wings of Dawn, but Blood Rose is dangerous.
William Investment Recommendation
| Player Type | Should You Build William? | Recommendation |
| New Player | Yes, lightly | Good early support option |
| F2P Player | Yes, lightly | Useful for training and backup formations |
| Low Spender | Maybe | Use only as temporary support |
| PvP-Focused Player | No | Upgrade S heroes first |
| Late-Game Player | Mostly no | Keep only for passive/support value |
| Guard of Order Main | Temporary | Replace with stronger Guard of Order S heroes |
William is worth using, but not worth overbuilding. He is best as an early support hero and later as a low-priority backup formation helper.
FAQs
Is William good in Last Z?
William is useful early and for troop training support, but he is not a strong late-game combat hero. Use him lightly and replace him when better heroes are available.
What faction is William in Last Z?
William belongs to the Guard of Order faction. This makes him best for Guard of Order formations, usually with Rider troops.
What type of hero is William?
William is a support-style hero focused on troop training. He should not be treated as a main DPS or main tank.
What troops should I use with William?
Use Rider troops with William because Guard of Order is commonly matched with Riders.
What is William’s best skill?
William’s best long-term skill is Well Trained because it increases troop training speed. For combat, Explosive Grenade is his best active skill.
Should F2P players upgrade William?
F2P players can upgrade William lightly if they need training support or backup formations. However, save your best EXP, skill books, gear, and orange hero resources for stronger S-rarity heroes.
Conclusion
William is a useful early-game Last Z Guard of Order support hero who helps with troop training and secondary formation value. His Well Trained skill is his biggest strength, while Explosive Grenade gives some early combat use.
The best way to use William is to keep him as a low-investment support hero, use Rider troops, place him in secondary formations, and avoid spending premium resources on him before your S heroes are built.
For more beginner-friendly hero builds, faction tips, and upgrade guides, check more Last Z guides on Heaven Guardian before spending your shards, skill books, gear materials, and EXP resources.