The Useless Card

Flash- Ward: Sacrifice 2 creatures
This card cannot be in your deck.
This card enters exile when used. Buyback {10}
Enchant target land it gains Double strike and
Myriad. When this card is used for a second time
Proliferate. When this card is used for a third
time Turn this card into a 0/1with indestructible
and Hexproof and the ability "this creature
cannot attack or block and sacrifice it at your
endkeep"