Thunderstorm

Spell
Tier 3 Max Level 6
Description
Skill Type
Area Damage
Effect
80 (+40/lvl) magic dmg, 66% stun (1s)
Requirements
Skill Points Spent
30
Cost & Timing
Mana Cost
180 (+24/lvl)
Cast Time
1.3s
Cooldown
15s
Range
10 yd
Damage
Damage
80 (+40/lvl)
Damage Type
Magic
Crowd Control
Stun Chance
66%
Stun Duration
1s
Level Scaling
Skill LevelDamageMana Cost
180180
2120204
3160228
4200252
5240276
6280300
Mechanics

Damage Formula

Pre-Mitigation
Skill Damage + Magic Damage
Magic Damage
(INT × 1.5 + wand.magic + equip.magic) × (1 + passive% + buff%)

Damage Pipeline

  1. Variance: ×0.9–1.1
  2. Backstab (behind target): +10% | Rogue w/ Improved Backstab: +25%
  3. Level difference: ±2% per level (max ±20%)
  4. Slayer reduction (boss/elite → player): −slayerLevel × 10%
  5. Enrage (<25% HP, non-spell): Player +33% | Monster +50–100%
  6. Mitigation: −ceil(dmg × clamp(target.magicResist × 0.0005, 0, 0.9))
  7. Crit: ×1.5
  8. Radiant Aether (15% on crit, consumes 1 item): ×3 on top → ×4.5

Resist Chance

clamp(
  target.magicResist × 0.0005
  + (target.level − attacker.level) × 0.005
  − attacker.accuracy
, 0, 0.9)

Target moving:
resist −0.25, damage +10%
Backstab:
resist × 0.8

Effective Cast Time = castTime − (castTime × spellHaste)

Stun

Applies on a single roll. Cannot apply while the target is feared. Duration stacks: extends the existing stun end time rather than replacing it. Bear mounts have a 90% chance to resist any stun.

Learned by Classes