Unassuming Phylactery

Whenever a creature is exiled, put a charge
counter on Unassuming Phylactery.
Whenever a card you control enters the
graveyard or leaves the battlefield, you may exile
it instead.
{t}: Remove all charge counters from
Unassuming Phylactery. For every two counters removed this way, put a +1/+1 counter on target creature.