Tainted Observer

Phyrexia: All Will Be One · #217 · Uncommon

Creature — Phyrexian Bird

Flying Toxic 1 (Players dealt combat damage by this creature also get a poison counter.) Whenever another creature you control enters, you may pay {2}. If you do, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)