Stormkeld Prowler {1}{U}
Creature — Human Rogue
Whenever you cast a spell with mana value 5 or greater, put two +1/+1 counters on this creature.
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Cards that do something similar expected a card that isn't here?
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Kurgadon 94%
$0.15#28207
"Whenever you cast a creature spell with mana value 6 or greater, put three +1/+1 counters on this creature."
Ascendant Packleader 84%
$0.32#8815
"Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature."
Lurking Lizards 84%
$0.17#18848
"Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature."