Alex, Child of Blacklight

Menace
When Alex, Child of Blacklight enters the battlefield, you may exile up to 2 creatures from
your graveyard. It enters the battlefield with that
many +1/+1 counters on it.
When Alex, Child of Blacklight dies, you
may pay {b/g}. If you do, put any number of
creatures you own in exile into your graveyard.