Snakeskin Veil is a uncommon Instant card from Foundations (FDN), collector number 233. Current market price: $0.34 (foil $0.37), TCGplayer market prices via Scryfall.
Put a +1/+1 counter on target creature you control. It gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)