Last War Mystery Supply Box Guide: Rewards, Drop Rates, and When to Open

The Mystery Supply Box in Last War Survival is a random-reward chest obtained through the Secret Command Post. You can earn boxes by completing Secret Tasks and helping allies with eligible tasks. Most openings give a Resource Chest, while much rarer rewards include recruitment tickets, Universal Legendary Hero Shards, an Epic Decoration Chest, and a 5,000 premium-currency reward.

There is no documented advantage to opening Mystery Supply Boxes at a particular time or in a large batch. Unless an active event explicitly rewards opening this type of chest, open them when you need the contents or save them for inventory management.

What Is the Mystery Supply Box?

Mystery Supply Boxes are tied to the Secret Command Post and its Secret Task system. Each box gives one result from its reward pool, with each listed item having its own probability.

The system is useful because even ordinary openings contribute to account progression. Resource Chests, Gear Material Chests, Upgrade Ore, Skill Medals, and Drone Components all feed into systems you will use repeatedly as your account develops.

The extremely rare rewards are more eye-catching, but the drop table is heavily weighted toward resources. Opening more boxes gives you more attempts at the rare drops; it does not guarantee that you will eventually receive a specific prize.

How to Get Mystery Supply Boxes in Last War

The documented source of Mystery Supply Boxes is the Secret Command Post. There are two main ways to earn them:

• Complete Secret Tasks: Finish eligible tasks from your Secret Command Post.
• Help allies: Join eligible Secret Task assistance opportunities from alliance members.

Because ally support can create additional opportunities, an active alliance is useful for more than combat events. Check the Secret Command Post regularly and participate when suitable assistance requests are available.

How to Earn More Boxes Consistently

• Complete your available Secret Tasks: Do not leave useful missions unfinished when you can complete them.
• Stay active in your alliance: Alliance participation creates more opportunities to notice and join support requests.
• Check task rewards before prioritizing: The direct Secret Task reward can matter just as much as the Mystery Supply Box.
• Claim completed rewards: Make sure finished Secret Command Post activities are actually collected.
• Do not ignore ordinary boxes: Their common materials add up even when you never hit the jackpot rewards.

Mystery Supply Box Rewards and Drop Rates

The following table shows the currently documented Mystery Supply Box reward pool and probabilities. The percentages total 100%.

Accuracy note: These probabilities are documented by a current community Last War data source rather than a publisher-maintained public reward table. Always check the in-game item preview if the displayed rewards or percentages differ after an update.

Which Mystery Supply Box Rewards Are the Rarest?

The rarest listed result is 5,000 Gems at 0.01%. That corresponds to a 1-in-10,000 probability on an individual opening if the documented rate applies.

That does not mean opening 10,000 boxes guarantees the reward. Drop rates describe probability, not a fixed pity counter, unless the game explicitly states that a guarantee exists.

The next notable rare rewards include:

• Universal Legendary Hero Shard: 0.10%
• Epic Decoration Chest: 0.10%
• Legendary Recruitment Ticket: 0.25%
• Survivor Recruitment Ticket: 0.25%

By comparison, the Resource Chest has an 83.94% rate. For practical planning, assume that most of your Mystery Supply Boxes will contribute ordinary progression resources.

Are the Common Rewards Still Worth Getting?

Yes. The common and mid-tier rewards often have more predictable value for a developing account than hoping for an extremely rare jackpot.

• Resource Chests: Supply resources for construction, research, troop development, and other upgrades.
• Gear Material Chests: Feed into gear progression through the Gear Factory.
• Upgrade Ore: Used when upgrading hero gear.
• Skill Medals: Used to improve hero skills and should usually be concentrated on heroes you actively use.
• Speedup Chests: Help reduce timers and can be saved for progression events where the same actions score points.
• Drone Components: Contribute to Drone progression and related Component Factory systems.
• Recruitment Tickets: Use the appropriate ticket in its corresponding recruitment system.

When Should You Open Mystery Supply Boxes?

For most players, there is no need to wait for a special day. The documented drop table does not show different rates based on opening time, batch size, account power, or how long the box has remained in your inventory.

Open Them Now When

• You need resources to finish an important upgrade.
• You are short on Gear Materials, Skill Medals, Upgrade Ore, or Drone Components.
• The potential rewards can immediately unblock account progression.
• You simply prefer converting boxes into usable items instead of accumulating unopened inventory.

Save Them When

• You do not currently need the rewards.
• You prefer opening and recording a large batch at once.
• You want to keep resources packaged until you have a specific use for them.
• An active in-game event explicitly says opening the relevant chest earns points or rewards.

Saving 100 boxes and opening all 100 together does not by itself create better documented odds than opening the same boxes individually.

Mystery Supply Box vs. Other Supply Boxes

Searches for Last War supply boxes often mix several differently named items together. Do not assume that every Supply Box uses the Mystery Supply Box reward table.

Training Supply Box

A Training Supply Box should not automatically be treated as another name for the Mystery Supply Box. The current Mystery Supply Box documentation identifies its source as the Secret Command Post and does not list “Training Supply Box” as an alternate name. If your inventory contains a specifically named Training Supply Box, use its in-game item preview for its current source and contents rather than applying the table above.

Tactical Master Supply Box

The Tactical Master Supply Box is a separate reward item associated with Alliance VS-related progression. Current item documentation lists Tactical Master Supply Boxes among the sources of rewards such as Skill Medals and Legendary Recruitment Tickets. Its reward system should therefore be treated separately from the Secret Command Post Mystery Supply Box.

What About Lucky Gifts?

The documented Mystery Supply Box drop table does not contain a reward named Lucky Gift. If you are trying to obtain a Lucky Gift from another Last War feature or limited event, check that feature’s current reward preview instead of farming Mystery Supply Boxes specifically for it.

How to Use Mystery Supply Box Rewards Efficiently

The best reward is not always the rarest one; it is the item that removes your current progression bottleneck.

• Keep Resource Chests packaged until needed: This can prevent you from converting resources earlier than necessary.
• Concentrate Skill Medals: Prioritize important skills on your primary combat heroes instead of spreading medals evenly across the roster.
• Prioritize core gear: Use Upgrade Ore and Gear Materials on equipment that supports your strongest squad first.
• Save useful speedups: Long construction, research, training, and event objectives usually provide better opportunities to use them than shortening trivial timers.
• Plan Universal Legendary Hero Shards: They are scarce enough that you should know which eligible hero you are developing before spending them.
• Use premium currency deliberately: If you hit a large currency reward, review the best ways to spend Diamonds in Last War Survival instead of immediately consuming it.

Players who would rather begin with more established heroes, research, gear, and resource progression can also compare a Last War account for sale as an optional progression route. Evaluate the complete account rather than choosing one solely because it has a large inventory.

Common Mystery Supply Box Mistakes

• Expecting rare items frequently: Resource Chests account for 83.94% of the documented table.
• Treating “1 in 10,000” as a guarantee: A 0.01% drop rate does not promise the reward on your 10,000th box.
• Waiting for an unverified lucky time: No documented opening time improves Mystery Supply Box rates.
• Assuming batch opening increases luck: Opening boxes together changes convenience, not the published probabilities.
• Ignoring normal materials: Gear Materials, Upgrade Ore, Skill Medals, speedups, and resources provide consistent account value.
• Confusing different Supply Boxes: Mystery, Training, and Tactical Master Supply Boxes should not be assumed to share the same contents.
• Spending rare rewards immediately: Universal Hero Shards and other scarce items are more valuable when used toward a defined progression target.
• Missing alliance assistance: Helping allies through eligible Secret Command Post activities can provide additional Mystery Supply Box opportunities.

FAQs

How do you get Mystery Supply Boxes in Last War?

You can earn Mystery Supply Boxes through the Secret Command Post by completing Secret Tasks and helping allies with eligible tasks.

What is the best reward from a Mystery Supply Box?

The rarest listed reward is 5,000 Gems at a 0.01% drop rate. Universal Legendary Hero Shards and Epic Decoration Chests are also rare at 0.10% each. Which reward is most useful, however, depends on your account’s current progression needs.

When should I open Mystery Supply Boxes in Last War?

Open them whenever you need their resources or materials. There is no documented evidence that a particular time or opening a large batch improves the drop rates. Saving can still make sense if an event explicitly rewards opening the relevant boxes or you simply do not need the contents yet.

What is the most common Mystery Supply Box reward?

The Resource Chest is the most common documented reward with an 83.94% drop rate.

Is a Training Supply Box the same as a Mystery Supply Box?

Do not assume so. The current Mystery Supply Box documentation identifies it as a Secret Command Post reward and does not list Training Supply Box as an alternate name. Check the Training Supply Box’s own in-game preview for its contents.

Can a Mystery Supply Box give a Lucky Gift?

Lucky Gift is not listed in the currently documented Mystery Supply Box reward table. If a Lucky Gift belongs to another event or feature, follow that feature’s in-game acquisition instructions instead.

Conclusion

Mystery Supply Boxes are worth collecting because their common rewards steadily support progression, even though the headline prizes have very low drop rates. Complete Secret Tasks, help alliance members when eligible, and expect Resource Chests far more often than Legendary Hero Shards or the 5,000 premium-currency reward.

There is no documented need to wait for a special opening time, so use or save boxes according to your progression needs rather than drop-rate rumors. For more current strategies, events, and progression guides, visit the Heaven Guardian Last War Survival guides.