Tainted Observer
From Phyrexia: All Will Be One set
Tainted Observer
Creature — Phyrexian Bird
2/3
Flying
Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)
Whenever another creature you control enters, you may pay
. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)