The List

Tezzeret's Gambit

({U/P} can be paid with either {U} or 2 life.)
Draw two cards, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Modern Horizons 3 Commander

({PU} can be paid with either {U} or 2 life.)
Draw two cards, then proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Outlaws of Thunder Junction Commander

New Capenna Commander

Strixhaven Mystical Archive

Commander 2019

Commander Anthology Volume II

({PU} can be paid with either {U} or 2 life.)
Draw two cards, then proliferate. (You choose any number of permanents and/or players with counters on them, then give each another counter of a kind already there.)