Engrave Pants - Arcane Surge

Engrave your pants with the Arcane Surge rune: Unleash all of your remaining mana in a surge of energy focused at the target dealing 2.46 to 2.84 Arcane damage, increased by up to 301% based on your mana remaining. Afterward, your normal mana regeneration is activated and increased by 301% for 8 sec.