Vigorous Charge is a common Instant card from Invasion (INV), collector number 222. Current market price: $0.11 (foil $0.69), TCGplayer market prices via Scryfall.
Kicker {W} (You may pay an additional {W} as you cast this spell.) Target creature gains trample until end of turn. Whenever that creature deals combat damage this turn, if this spell was kicked, you gain life equal to that damage.