Dwarven Raiders

When Dwarven Raiders enters the battlefield,
deal 1 damage up to each creature target player
controls equal to amount of Cowboy creatures
you control.
Prospect 2 (If you discard this card, you may put
two +1/+1 counters on a creature you control.)
"We'll be taking all the gold you prospected. Although
these mines truly belong to us anways."