At a glance
At level 40 the Upgrade button becomes Promote. Each piece has 5 promotion slots.
The piece's big bonus, unlocked after the 4th promotion: +10% hero damage on the sword.
of the Duel: the only day when spent Ore and Pig Iron score points.
How promotion works
Each promotion fills one of the 5 slots under the piece's icon. It upgrades one extra attribute, in order, and raises every base stat by 3 to 5%. Examples: on the bracers, the 1st promotion takes hero attack from +250 to +750; on the sword, the 2nd takes crit from 2.5% to 5%.
The 5th slot holds the piece's biggest bonus (+10% hero damage on the King's Sword, +5% hero defense on the King's Bracers). It only opens once the first four are filled: a half-promoted piece gets none of it.
What one promotion costs
| Piece | Coins | Crystals | Ingots | Ore |
|---|---|---|---|---|
| Sword (3rd promotion) | 27M | 22,500 | 4,700 | 2,700 |
| Bracers (2nd promotion) | 24M | 20,000 | 4,700 | 258 |
Silver ingots (Pig Iron) are the real bottleneck: you need about 4,700 per promotion, and you cannot buy them with Coins.
Promotion order
- Your main damage dealer's sword, all the way. +10% hero damage is the best bonus.
- Your tank's armor, then the greaves.
- Bracers last, same as for leveling.
One piece promoted to the end beats four pieces half done: the 5th slot is where the value is.
End goal: Dragonslayer
Once its 5 stars are filled, the King's Sword can be promoted into Dragonslayer (Mythic). This last step gives roughly +288,000 power and unlocks +10% hero damage.
| Step | Coins | Ore | Iron | Drafts |
|---|---|---|---|---|
| Levels 1 to 40 | 20.4M | 213,800 | – | – |
| Stars 0 to 5 | 564M | 515,500 | 179,700 | 65 UR |
| Mythic promotion | – | 30,000 | 19,900 | 10 MR |
| Total | ≈ 584M | ≈ 759,000 | ≈ 199,600 | 65 UR + 10 MR |
Crude Ore counts as Ore; Pig Iron and Crude Iron both count as Iron.