Vizxuials, Managorge Hydra

Flying, vigilance, trample, indestructible.
As long as your devotion to {r} & {g} is less
than 7, Vizxuials, Managorge Hydra is not a
creature.
Other creatures you control have vigilance.
Whenever Vizxuials, Managorge Hydra deals
damage to an opponent, that player discards
a card.