Walker of the Infinite

: Deserts you control have "{T}: Add 1 mana of any color."
0: Target desert you control becomes a 3/3 Elemental creature until end of turn with "{T}: Put 2 loyalty counters on Walker of the Infinite."
-9: Sacrifice five deserts. Target opponent's life total becomes 1. You create five 1/1 Ammit creature tokens with menace.