Magic damage
Damage spells work out their damage in their own way: Magic Power and Magic Resistance count, while Defence, Extra Attack, Extra Defence, Defence Rate, criticals, elements and the attacker's level multiplier do not.
Formula
Damage = K × (100 + Magic Power + a roll of 0 to 49) % × (100 − reduction) % × the level difference factor, rounded down, where the reduction is the target's Magic Resistance reduction, 99 × MR / (MR + 50) %.
K depends on the spell and its step. In the formulas, k is the skill's step (1 to 24), g its grade (1 to 4 for I to IV) and L the step within the grade (1 to 6), so k = 6 × (g − 1) + L.
Spells
K at the first step and at the last step of each grade:
| Spell | Step 1 | Step 6 | Step 12 | Step 18 | Step 24 | Notes |
|---|---|---|---|---|---|---|
| Magic Arrow | 70 | 420 | 1,680 | 3,360 | 5,460 | |
| Vampire Kiss | 50 | 300 | 1,200 | 2,400 | 3,900 | heals the caster |
| Blaze Gavel | 40 | 240 | 960 | 1,920 | 3,120 | may stun |
| Fireball | 80 | 480 | 1,920 | 3,840 | 6,240 | |
| Lightning Strike | 80 | 480 | 1,920 | 3,840 | 6,240 | |
| Electro-Shock | 70 | 420 | 1,680 | 3,360 | 5,460 | may stun |
| Ice-Blaze | 70 | 420 | 1,680 | 3,360 | 5,460 | may freeze |
| Poison | 70 | 420 | 1,680 | 3,360 | 5,460 | may poison |
| Gaia's Root | 70 | 420 | 1,680 | 3,360 | 5,460 | may hold |
| Seal Attack | 40 | 240 | 960 | 1,920 | 3,120 | may hold |
| Death Blaze | 80 | 480 | 1,440 | 2,880 | 4,800 | |
| Instant Damage | 80 | 480 | 1,440 | 2,880 | 4,800 | |
| Confusion (Akhan) | 40 | 240 | 720 | 1,440 | 2,400 | may stun |
| Crush Attack | 50 | 300 | 900 | 1,800 | 3,000 | slows; removes a buff |
A spell that may hold, stun, freeze, slow or poison deals its damage first; the target can resist the effect (Magic Resistance).
Example
A Fireball at step 12 (K = 1,920) cast with Magic Power 60 on a monster of the same level with Magic Resistance 20 (reduction 28%) deals 1,920 × (160 to 209)% × 72% = 2,211 to 2,889.
Other spells
- Dark Sword: level difference factor × 40 × g × (L + 3 × (g − 1)); no Magic Power and no Magic Resistance.
- Pain Sharing: level difference factor × 30 × g × (L + 3 × (g − 1)), paid with the caster's own HP; no Magic Resistance.
- Heals (Heal, Lotos) and Dark Power are multiplied by (100 + Magic Power + a roll of 0 to 49) % like damage spells; Mana Sharing by the whole part of (100 + Magic Power + a roll of 0 to 49) / 100.