Stormkeld Prowler
Creature — Human Rogue
Oracle Text
Whenever you cast a spell with mana value 5 or greater, put two +1/+1 counters on this creature.
Flavor Text
To the giants, it was one little gem among thousands. But to Kylene, it was a haul that would feed her family for years.
Power / Toughness
2 / 1
Rarity
in its mana cost, use the value chosen for that X to determine the mana value of that spell.