Rouse the Mob is a common Instant card from Journey into Nyx (JOU), collector number 109. Current market price: $0.16 (foil $0.33), TCGplayer market prices via Scryfall.
Strive — This spell costs {2}{R} more to cast for each target beyond the first. Any number of target creatures each get +2/+0 and gain trample until end of turn.