Gastly

Evolve 6 - At the beginning of your upkeep, gain
1 Experience Counter. Then, if you have 6 or
more Experience Counters, Exile Gastly, and put
Haunter onto the battlefield from the Command
Zone.
Flying, Shadow, Toxic 1
{b}{p/b}: Create a 0/1 Black Illusion creature token
named Gastly with Flying.