Your search for "Thrummingbird 858" revealed the following:
Thrummingbird (CMM) from Commander Masters, available at 401 Games Canada. Rarity: Uncommon Finish: Normal Artist: Efrem Palacios Card Text:FlyingWhenever Thrummingbird deals combat damage to a player, proliferate. (Choose any number of permanents and/or players, then give each another counter of...