Feral Ferocity

Two mana for four points of stats in each direction, at instant speed, with no rider and no catch: this is the plainest possible expression of green's combat-trick math. The whole value of a spell like this lives in the ambush. Cast with nothing attacking, it does nothing but drain your hand; deployed mid-combat, it turns a trade into a blowout, wins a race, or saves a creature from a burn spell it would otherwise die to. The +4/+4 line is a rate green has long treated as the honest common-rarity price for a pump spell that only ever does one thing: big enough to swing a fight decisively, small enough that you pay for the tempo by holding up mana you cannot spend elsewhere. Set it against the older Giant Growth (+3/+3 for a single green mana), which trades a point of both stats for a cheaper cost and a tighter window. Feral Ferocity is the fatter, one-mana-costlier version of that idea, built for boards where four extra points actually clears the toughness of what you are fighting. It is filler by design, and useful precisely because of that: a green deck that wants to win in combat can always slot a trick with no deckbuilding cost, one that rewards nothing but reading the attack step correctly.