Treasure of Cortés

{3}{t}: Put a coin counter on target creature.
Each creature with a coin counter on it is a
Skeleton in addition to its other creature types
and has "If this creature were to be destroyed, regenerate it instead."
"Here it is! The cursed treasure of Cortes himself.
Every last piece that went astray, we have returned.
Save for this."--Hector Barbossa to his crew