Maya Slipstream

Flash, Slip, Hexproof, protection from Red and Instants. Creatures you control have Flash and Slip. (That creature may attack once during the opponent's turn.) {t}, {1}{u}{u}: Put 5 creatures with mana costs less than 5 onto the battlefield tapped and attacking. At the end of your end step, put them back into your hand. Then during an opponents turn you may attack with them again. This ability does not take up your turn's Slip ability.