Gate Guardian

To cast this card exile 3 creatures you control with total power and toughness of 7+ of different colors, and 2 cards from the bottom of your library for every time after the first if cast from the command zone.
When this creature enters the battlefield {ut} all gate cards you control.Gates have indestructible.
{u}{2}: Return target creature to its owner's hand.
{g}{2}: Destroy target artifact or enchantment.
{w}{w}{4}: Return target card in your exile and place
it on the field.({w}, {u}, {g} must b