Thunderstorm You call down a bolt of lightning, energizing you and damaging nearby enemies within 10 yards. Restores 15% 60% mana to you and deals [ 1,816 + 57.1% of Spell Power ] Nature damage to all nearby enemies, reducing their movement speed by 40% for 5 sec and knocking them back 20 yards. This spell is usable while stunned. Shaman - Elemental Spec. Instant. 45 sec cooldown.