Rain of Fire (doomguard ability)

The end-game warlock pet Doomguard ability, which causes fire damage to all enemies in a 30 yard area (AoE) in 8 ticks over 8 seconds. It costs 850 mana. The Doomguard must channel this spell, therefore he will not be able to move/attack while using this spell. The base damage of Rain of Fire scales with the Doomguard's level, starting at 800 (100 per tick) at level 60. Each tick of Rain of Fire receives bonus damage equal to roughly 175% of the Doomguard's spell power or 26.25% of the warlock's spell power, for a total spell power coefficient of 1400% (210% of the warlock's spell power).