Ripples of Potential is a rare Instant card from The Lost Caverns of Ixalan Commander (LCC), collector number 45. Current market price: $7.00, TCGplayer market prices via Scryfall.
Proliferate, then choose any number of permanents you control that had a counter put on them this way. Those permanents phase out. (To proliferate, choose any number of permanents and/or players, then give each another counter of each kind already there. Treat phased-out permanents and anything attached to them as though they don't exist until their controller's next turn.)