Heroes earn XP for the damage their attacks deal and each time they use a skill. Each skill's XP per use is listed on the hero's page.
XP and upgrade points by level
| Level | Total XP | XP from the level before | Upgrade points | Gems from the level before |
|---|---|---|---|---|
| 1 | 0 | - | 0 | - |
| 2 | 1,000 | 1,000 | 4 | 20 |
| 3 | 4,500 | 3,500 | 8 | 70 |
| 4 | 10,500 | 6,000 | 12 | 120 |
| 5 | 19,000 | 8,500 | 16 | 170 |
| 6 | 30,000 | 11,000 | 20 | 220 |
| 7 | 45,000 | 15,000 | 24 | 300 |
| 8 | 64,000 | 19,000 | 28 | 380 |
| 9 | 88,000 | 24,000 | 32 | 480 |
| 10 | 120,000 | 32,000 | 36 | 640 |
The level-up button in the Heroes room sells one or more levels at once: 1 gem per 50 XP the hero is missing up to the chosen level, rounded to the nearest 10 gems. From level 1 with no XP, level 10 costs 2,400 gems.
XP multipliers
The XP a hero earns in a battle is multiplied by the game mode, the difficulty and how far the hero is from the level expected for the campaign progress.
| Game mode | Hero XP |
|---|---|
| Campaign | ×1 |
| Iron Challenge | ×1 |
| Hero Party | ×1.25 |
| Blitz Challenge | ×1.25 |
| Classic Rush | ×1.5 |
Spell Rush is played without heroes.
| Difficulty | Hero XP |
|---|---|
| Casual | ×1 |
| Normal | ×1 |
| Veteran | ×1 |
| Impossible | ×1.5 |
Expected hero level
A hero 2 or more levels below the expected level earns ×2 XP; 2 or more levels above, ×0.5. One level off in either direction changes nothing.
| Highest campaign stage unlocked | Expected hero level |
|---|---|
| 1-2 | 1 |
| 3-4 | 2 |
| 5-7 | 3 |
| 8-9 | 4 |
| 10-11 | 5 |
| 12-13 | 6 |
| 14 | 7 |
| 15-16 | 8 |
| 17-18 | 9 |
Starting levels
A hero joins at its starting level with that level's XP and upgrade points.
Starts at level 1 with 0 XP and 0 upgrade points. Available from the start.
Starts at level 1 with 0 XP and 0 upgrade points. Unlocks at 1 star.
Starts at level 2 with 1,000 XP and 4 upgrade points. Unlocks at 11 stars.
Starts at level 3 with 4,500 XP and 8 upgrade points. Unlocks at 20 stars.
Starts at level 4 with 10,500 XP and 12 upgrade points. Unlocks at 28 stars on Steam and is an in-app purchase on iOS and Android.
Starts at level 4 with 10,500 XP and 12 upgrade points. Unlocks at 40 stars on Steam and is an in-app purchase on iOS and Android.
Starts at level 4 with 10,500 XP and 12 upgrade points. Unlocks at 54 stars on Steam and is an in-app purchase on iOS and Android.
Starts at level 5 with 19,000 XP and 16 upgrade points. Unlocks at 58 stars on Steam and is an in-app purchase on iOS and Android.
Starts at level 5 with 19,000 XP and 16 upgrade points. Unlocks at 66 stars on Steam and is an in-app purchase on iOS and Android.
Starts at level 5 with 19,000 XP and 16 upgrade points. Unlocks at 70 stars on Steam and is an in-app purchase on iOS and Android.
Starts at level 5 with 19,000 XP and 16 upgrade points. Unlocks at 80 stars on Steam and is an in-app purchase on iOS and Android.
Starts at level 5 with 19,000 XP and 16 upgrade points. Unlocks at 84 stars on Steam and is an in-app purchase on iOS and Android.