Xurxiti, Perfection Enforcer

Companion — Each creature in your starting
deck loses all types and is a Phyrexian. (If this
card is your chosen companion, you may put it in
your hand from outside the game for {5} as a sorcery.)

Phyrexians you control have infect.

Whenever one or more -1/-1 counters are put
on a creature, pay {w}{b}. If you do, proliferate.