Increases Hull Health while in Arena.
What it costs to research each level, how long it takes, and the effect at that level.
| LEVEL | TIME | HARD CURRENCY | COST | EFFECT |
|---|---|---|---|---|
| Lv 1 | — | 0 | — | Reinforced Arena Hull 2.5% |
| Lv 2 | — | 0 | — | Reinforced Arena Hull 3.5% |
| Lv 3 | — | 0 | — | Reinforced Arena Hull 5% |
| Lv 4 | — | 0 | — | Reinforced Arena Hull 7% |
| Lv 5 | — | 0 | — | Reinforced Arena Hull 9% |
| Lv 6 | — | 0 | — | Reinforced Arena Hull 11% |
| Lv 7 | — | 0 | — | Reinforced Arena Hull 14% |
| Lv 8 | — | 0 | — | Reinforced Arena Hull 17% |
| Lv 9 | — | 0 | — | Reinforced Arena Hull 21% |
| Lv 10 | — | 0 | — | Reinforced Arena Hull 25% |