Once each turn, when a creature with power 2 or less enters the battlefield under your control, you may pay {1}. If you do, draw a card.
{1}{W}: Level 2
At the beginning of combat on your turn, put a +1/+1 counter on up to one target creature you control.
{3}{W}: Level 3
When this Class becomes level 3, exile target nonland permanent an opponent controls until this Class leaves the battlefield.