Rojack, a Secret Weapon

Flying, Doublesrike, Hexproof.
You may exert Rojack, a Secret Weapon as it
attacks, iy you do, create a 2/2 blue, green and
white bird warriar creature token with flying that
is tapped and attacking.
{t}: create a blue, green and white enchantment
called Mage Armor with: "Sacrifice this
enchantment: prevent all combat damage that
would be dealt this this turn.".