Thrummingbird 
Creature — Phyrexian Bird Horror
Flying Whenever this creature deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL
Prints
Edge of Eternities Commander
EN · EOC · 2025-08-01
Commander Masters
EN · CMM · 2023-08-04
Phyrexia: All Will Be One
EN · ONE · 2023-02-10
Phyrexia: All Will Be One
EN · ONE · 2023-02-10
Phyrexia: All Will Be One
EN · ONE · 2023-02-10
New Capenna Commander
EN · NCC · 2022-04-29
The List
EN · PLST · 2019-11-07
Commander Anthology Volume II
EN · CM2 · 2018-06-08
Commander 2016
EN · C16 · 2016-11-11
Modern Masters 2015
EN · MM2 · 2015-05-22
Scars of Mirrodin
EN · SOM · 2010-10-01