Fieradun, the Allhammer

Indestructible
As long as you control less than five other red creatures, Fieradun is not a creature.
Attacking creatures you control gain first strike.
As long as Fieradun is a creature, other creatures
you control gain "{r}, sacrifice this creature: Deal
X damage to any target, or create X Treasure
tokens, where X is the sacrificed creature's power."