"Throws a giant exploding fireball at the closest defense "
| Level | Ability attributes damage radius | Ability attributes projectile damage | Hero boosts | Upgrade cost damage radius | Upgrade cost projectile damage | Upgrade cost damage per second increase | Blacksmith level required |
|---|---|---|---|---|---|---|---|
| 1 | 4 tiles | 1,500 | 21 | N/A | N/A | N/A | 1 |
| 2 | 4 tiles | 1,500 | 24 | 120 | - | - | 1 |
| 3 | 4 tiles | 1,700 | 27 | 240 | 20 | - | 1 |
| 4 | 4 tiles | 1,700 | 30 | 400 | - | - | 1 |
| 5 | 4 tiles | 1,800 | 33 | 600 | - | - | 1 |
| 6 | 4 tiles | 1,950 | 36 | 840 | 100 | - | 1 |
| 7 | 4 tiles | 1,950 | 40 | 1,120 | - | - | 1 |
| 8 | 4 tiles | 2,050 | 44 | 1,440 | - | - | 1 |
| 9 | 5 tiles | 2,200 | 47 | 1,800 | 200 | 10 | 1 |
| 10 | 5 tiles | 2,200 | 51 | 1,900 | - | - | 1 |
| 11 | 5 tiles | 2,350 | 56 | 2,000 | - | - | 1 |
| 12 | 5 tiles | 2,650 | 60 | 2,100 | 400 | 20 | 1 |
| 13 | 5 tiles | 2,650 | 63 | 2,200 | - | - | 3 |
| 14 | 5 tiles | 2,750 | 67 | 2,300 | - | - | 3 |
| 15 | 5 tiles | 3,100 | 71 | 2,400 | 600 | 30 | 3 |
| 16 | 5 tiles | 3,100 | 74 | 2,500 | - | - | 5 |
| 17 | 5 tiles | 3,250 | 77 | 2,600 | - | - | 5 |
| 18 | 5 tiles | 3,400 | 80 | 2,700 | 600 | 50 | 5 |
| 19 | 5 tiles | 3,400 | 82 | 2,800 | - | - | 7 |
| 20 | 5 tiles | 3,500 | 84 | 2,900 | - | - | 7 |
| 21 | 5 tiles | 3,650 | 87 | 3,000 | 600 | 100 | 7 |
| 22 | 5 tiles | 3,650 | 89 | 3,100 | - | - | 8 |
| 23 | 5 tiles | 3,750 | 92 | 3,200 | - | - | 8 |
| 24 | 6 tiles | 3,900 | 94 | 3,300 | 600 | 120 | 8 |
| 25 | 6 tiles | 3,900 | 96 | 3,400 | - | - | 9 |
| 26 | 6 tiles | 3,950 | 99 | 3,500 | - | - | 9 |
| 27 | 6 tiles | 4,100 | 101 | 3,600 | 600 | 150 | 9 |