Xenagos, God of Revels is a mythic Legendary Enchantment Creature — God card from Born of the Gods (BNG), collector number 156. Current market price: $10.61 (foil $30.10), TCGplayer market prices via Scryfall.
Indestructible As long as your devotion to red and green is less than seven, Xenagos 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.