Alkar will heal mobs hostile to the player's party when they are low on health.
Oddly, Alkar is not armed with a staff. He uses some sort of ranged projectile that causes a "bludgeoning" sound upon impact, much the same as a hammer would.
Trivia[]
Alkar is likely a reference to the character Alkor in Diablo 2, who is also an alchemist.