Section 06
Mithril, Wish Sigils, Fire Crystals, Chief Gear and Charms — what each one is for, and when it's too early to care.
Endgame only. One use, long prerequisite chain, and worth knowing about mainly so you don't waste effort chasing it early.
Mithril has exactly one purpose: empowering Legendary Hero Gear. It does nothing else in the game.
| Gear level | Mithril | Mythic gear | Note |
|---|---|---|---|
| 20 | 10 | 3 | First empowerment. Grants +20% Expedition attack or defense depending on the piece. |
| 40 | 20 | 5 | Requires level 39 and Mastery 12 first. |
| 60 | 30 | 5 | |
| 80 | 40 | 10 | |
| 100 | 50 | 10 | Maximum. |
Total to max: 150 Mithril and 33 Mythic gear pieces, on top of everything spent getting there.
The Arena Shop is the free-to-play source: 3 Mithril per season at 10,000 Arena Coins each. That's another reason the ten daily Arena challenges matter — they're feeding two bottlenecks at once. Kasia's Wish House also stocks it, and it's the top-priority buy there.
New with the Fire Crystal Age. Free, entirely passive, and easy to ignore for months without realising you're losing daily rewards.
When your Furnace reaches Fire Crystal Lv. 1, the old Suggestion Box automatically becomes the Wish Station. Survivors post wishes for better housing, food, healthcare, work and entertainment. As your Furnace level rises and prerequisite Wishes are completed, more Wishes unlock.
All construction materials can be collected free through normal daily play — there's no payment requirement. The only cost is remembering to open it.
Two different things that people routinely confuse.
| Currency | Used for | Warning |
|---|---|---|
| Fire Crystals | Upgrading the Furnace and other buildings past level 30 — Embassy, Command Center, Infirmary, and the three troop camps. Also troop tier upgrades. | Don't convert them all to shards. The War Academy needs crystals to raise its own level. |
| Fire Crystal Shards | War Academy Helios research only — the T11 troop path. Roughly 13,400 per troop line. | Useless if your War Academy is too low to spend them. Do one troop line at a time. |
| Refined Fire Crystals | Later-stage Fire Crystal progression. Produced by the Crystal Laboratory. | Check the Crystal Lab daily — it's on the new Daily tab. |
Six pieces, three pairs. The pairing is by row, not column — this is the single most misunderstood layout in the game.
| Pair | Feeds |
|---|---|
| Cap + Watch | Lancer Lethality & Health |
| Coat + Pants | Infantry Lethality & Health |
| Ring + Cane | Marksman Lethality & Health |
A charm in the left piece and the right piece of the same row do the same thing. Left versus right is meaningless — tap a piece to confirm the labels on your own build.
Gear gives Attack and Defense. Charms give Lethality and Health. They stack on the same piece and run on completely separate materials — gear on Hardened Alloy, Polishing Solution and Design Plans; charms on Guides, Designs and Jewel Secrets. They don't compete, so push both.
Damage is Attack × Lethality. The game hands out plenty of Attack through research, heroes and buildings, but very little Lethality — which is why charms often give more combat power per material than gear does.
Spend Wish Vouchers on a prize board — gems, Fire Crystals, Essence Stones, Lucky Hero Gear Chests, occasionally Dream Marks. Every 100 wishes triggers a Sincere Wish that guarantees Dream Marks, which are the currency in Kasia's Shop.
Shop priority:
A customizable pack tied to the end of the State of Power cycle, live for roughly 24 hours. Three selection slots — and you can pick the same material in all three, so concentrate on your single bottleneck rather than diversifying. Quantities scale with server progression, so check your own panel rather than any table.
The common advice — open 5 or 6 orbs then reset — is wrong. Odds aren't flat: roughly 1.8% on the first orb, 3.9% second, 6.4% third, ~13% by the fifth, ~25% by the sixth, reaching 100% only at the tenth. Resetting early bails out right before the odds turn. A full round can cost up to 95 tokens, so don't start one you can't finish. Tokens carry over between events.
Set Fire Crystals as your Wish Reward once you're in the Fire Crystal age. Skip Gems unless you specifically want Lucky Wheel spins.
Good value on the free side — daily missions give pickaxes, and every tile returns something even before the Ultimate Treasure appears. Pick the Ultimate Treasure that matches your actual bottleneck, and you can change the selection any time before you find it. Budget for the maximum search count: a standard floor can take 14 searches, a Supreme Chamber up to 22 for roughly double the reward — check the ratio before committing.