Gene Worm

{2}{t}Sacrifice a land to turn a target land into a land of your choice. land reverts back to normal color at the end of your turn.
{2}{t}Sacrifice 2 lands to turn a target land into a land of your choice. A terraformed land cannot be targeted again. this effect is permanent.
"If such a creature would ever be unleashed it would effectively turn earth into a different world."