Colossal Heroics is a uncommon Instant card from Journey into Nyx (JOU), collector number 118. Current market price: $0.22 (foil $0.35), TCGplayer market prices via Scryfall.
Strive — This spell costs {1}{G} more to cast for each target beyond the first. Any number of target creatures each get +2/+2 until end of turn. Untap those creatures.