New Alliance Unit - Human Mage

These female Magi, sent by the remaining Magocrats of Dalaran, use their arcane powers to aid the Alliance forces whenever Humanity is imperiled. Although their powers are not often used directly in combat, the Magi are able to aid the Alliance warriors with a wide array of specialized conjurings and magical effects.
Abilities:
Slow - Slows a target enemy unit's attack rate and movement speed.
Invisibility - Makes a target unit invisible. If the unit attacks, uses an ability or casts a spell, it will become visible.
Polymorph - Turns a target enemy unit into a sheep or flying sheep. The targeted unit retains its hit points, but cannot attack. Cannot be cast on Heroes or Summoned units.