Mudbutton Cursetosser 
Creature — Goblin Warlock
As an additional cost to cast this spell, behold a Goblin or pay {2}. (To behold a Goblin, choose a Goblin you control or reveal a Goblin card from your hand.)
This creature can't block.
When this creature dies, destroy target creature an opponent controls with power 2 or less.
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Cards that do something similar expected a card that isn't here?
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Squeaking Pie Sneak 85%
$0.17#27487
"As an additional cost to cast this spell, reveal a Goblin card from your hand or pay {3}."