Caveth, The First Merge

Caveth is all colors.
When you cast Caveth, search THE CUBE for a creature with cmc less than or equal to the
amount of mana spent to cast Caveth and put it
into your command zone.
Caveth's power is equal to the total power of
each non-commander creature in your command
zone, the same is true for toughness, cmc, types,
and text boxes.