Xenagos, God of Revels
{3}{R}{G}
Legendary Enchantment Creature -- God
6/5
Indestructible
As long as your devotion to red and green is less than seven, ~this~ isn't a creature.
At the beginning of combat on your turn, another target creature you control gains haste and gets +X/+X until end of turn, where X is that creature's power.