Koilos Roc - The Brothers' War #55

Koilos Roc

Set: The Brothers' War (BRO)
Collector Number: 55
Type: Creature — Bird
Rarity: Common
Mana Value: 5.0

Flash
Flying
When this creature enters, create a tapped Powerstone token. (It's an artifact with "{T}: Add {C}. This mana can't be spent to cast a nonartifact spell.")