Bard, Wandering Caretaker

Bard can be your Commander.
Bard enters the battlefield with X loyalty counters where X is the amount of mana spent to cast Bard.
•+1: Target player gains life equal to the amount of loyalty counters on Bard.
•-2: Exile up to two target creatures. Return them to the battlefield, under their owners control, at the beginning of their owners next end step.
•-X: Target player draws X cards. Another target player gains twice X life. {bull}