Core Siphoner Licid

{5},{t}: Core Siphoner Licid loses this ability and becomes an enchantment creature under target opponent's control that reads "Whenever you
untap a land you lose one life, and the owner of
Core Siphoner Licid gains a life.
Most licids are content with a single creature as their
host, but some will settle for nothing less than infecting
an entire plane.