Heartbeat of Valor
Exploration skill 1
Seo-yoon lifts the army's spirits with invigorating drum beats, increasing all hero and troops' Attack by 3.5% and Attack Speed by 4.5% for 4s. (level 5)
| Level | Attack Up | Attack Speed Up | Needs | Power | |
|---|---|---|---|---|---|
| 1 | 1.5% | 2.5% | — | — | 720 |
| 2 | 2% | 3% | 10 | 1★ | 2,520 |
| 3 | 2.5% | 3.5% | 30 | 2★ | 5,040 |
| 4 | 3% | 4% | 50 | 3★ | 8,568 |
| 5 | 3.5% | 4.5% | 75 | 4★ | 13,536 |
| Total | 165 |
