Xiang Liu, Minion of Gong Gong

When this card enters the battlefield, two target
lands become a basic swamp and a basic island respectively. When this card leaves the
battlefield, destroy target land.
Xiang Liu was killed by his master, the deity Gong
Gong. He is so vile and evil that his blood corrupted
all that it touches, rendering the land barren, and
turning lush forests and fertile plains to fetid waters
and putrid swamps.