Scourge of Llanowar

Whenever a creature dealt damage by Scourge of
Llanowar this turn is put into a graveyard from the
battlefield, you may pay {b}{b} and tap Scourge of
Llanowar. If you do, return it to the battlefield under
your control except its black, has deathtouch and is a
Phyrexian in addition to its other creature types.
Whenever Scourge of Llanowar attacks or blocks, it
gains deathtouch until end of turn.
"And so the cycle continues"