Bonus by level (per charm)
| Level | Lethality & Health |
|---|---|
| 1 | +9% |
| 5 | +25% |
| 11 | +55% |
| 16 | +100% |
| 18 | +118% |
Per one community wiki (WoS Tools). Sub-levels from level 4 let you upgrade in smaller, cheaper steps.
Gems slotted into your Chief Gear, three per piece, that add Lethality and Health for that piece’s troop type.
TL;DR Level charms evenly up to 11 (the usual free-to-play stopping point), focus your main troop type, and use the material exchange once a charm reaches 11.
| Level | Lethality & Health |
|---|---|
| 1 | +9% |
| 5 | +25% |
| 11 | +55% |
| 16 | +100% |
| 18 | +118% |
Per one community wiki (WoS Tools). Sub-levels from level 4 let you upgrade in smaller, cheaper steps.
| Target | Charm Guides | Charm Designs | Charm Secrets |
|---|---|---|---|
| One charm to Lv.11 | 2,025 | 2,700 | — |
| One charm to Lv.18 | 7,100 | 6,910 | 575 |
| All 18 charms to Lv.18 | 127,800 | 124,380 | 10,350 |
Per WoS Tools. Guides disagree on when Secrets are first needed: from sub-level 11.1, or from level 12.