Stomped by the Foot is a common Instant card from Teenage Mutant Ninja Turtles (TMT), collector number 82. Current market price: $0.07 (foil $0.15), TCGplayer market prices via Scryfall.
Kicker—Sacrifice an artifact or creature. (You may sacrifice an artifact or creature in addition to any other costs as you cast this spell.) Target creature gets -2/-2 until end of turn. If this spell was kicked, that creature gets -5/-5 until end of turn instead.