Borrowed Hostility is a common Instant card from Eldritch Moon (EMN), collector number 121. Current market price: $0.17 (foil $0.50), TCGplayer market prices via Scryfall.
Escalate {3} (Pay this cost for each mode chosen beyond the first.) Choose one or both — • Target creature gets +3/+0 until end of turn. • Target creature gains first strike until end of turn.