Sure Strike (FDN)

Instant

Target creature gets +3/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

Niche combat trick for aggressive red decks, but the temporary boost and narrow first-strike synergy make it easily outclassed by more efficient removal or evasion options like Mutagenic Growth or Embercleave in formats where it's legal.

Foundations — Common