Increases thunder resistance. Also improves defense at higher levels.
| Lv1 | 6 | Thunder resistance +6 |
| Lv2 | 12 | Thunder resistance +12 |
| Lv3 | 20/10 | Thunder resistance +20 Defense +10 |
| Thunder Charm I | Lv1 | A charm that grants the Thunder Resistance skill. |
| Thunder Charm II | Lv2 | A charm that grants the Thunder Resistance skill. |
| Thunder Charm III | Lv3 | A charm that grants the Thunder Resistance skill. |