From Diablo Wiki
| Mystic Ally|
Cost: 25 Spirit
Water Ally120% of your weapon damage as Physical and slows the movement of affected targets by 30% for 2 seconds.
Fire Ally80% weapon damage as Fire plus an additional 40% of your weapon damage per second as Fire for 2 seconds to all enemies in a straight line.
Air Ally2% chance to generate 100 Spirit for you. In addition, the ally is surrounded in a torrent of wind that deals 10% of your weapon damage per second as Physical to all nearby enemies.
Eternal Ally50% chance to be reborn after 5 seconds. In addition, the physical damage of the ally's basic attack is increased to 44% of your weapon damage per swing.
Earth Ally10%. The ally also gains the ability to create a wave of earth, dealing 60% of your weapon damage as Physical to a single enemy and forcing that enemy to attack the ally for 3 seconds.
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