Wild Hunger

The flashback cost is the whole reason this combat trick reads differently than its body suggests. A +3/+1 trample pump at instant speed is unremarkable on rate; what the second cost does is convert the same card into a second trick later, paid in red rather than green. That two-color split is the design lever: the spell wants to be cast in a deck that runs both colors, and it pays you twice for the deckbuilding commitment. The first cast is the green deck's combat math, pushing damage through a blocker or stealing a race. The exile-after clause that flashback carries means the card is a finite resource (one front-side cast, one back-side cast, then gone), so it behaves less like a reusable engine and more like two stapled-together tricks at staggered prices. The trample grant is the part that earns its keep against chump blockers; +3/+1 alone trades up in combat, but trample is what turns a forced block into face damage. Cards like this sit in a lineage of pump spells that try to justify their card slot by doing something after they leave the stack, and flashback is the cleanest way the game has found to do that: the graveyard becomes a second hand, and a midrange Gruul deck gets two combat interventions out of a single draw.