Savage Stomp
Green's fight spells have always carried the same liability: you pay for a removal effect that asks one of your own creatures to absorb return damage. This one settles the cost half of that bargain by putting a +1/+1 counter on your fighter before the fight resolves, so the creature you point at trouble enters the exchange a point larger and a point harder to kill. The counter is not a sweetener; it is the arithmetic that tips a mutual trade toward a one-sided one. Grow the fighter far enough and the opposing creature dies while yours walks away with a permanent bump, so a single sorcery both clears a body and leaves a bigger threat behind. Note the timing, though: this is a sorcery, and fight deals noncombat damage. You are not ambushing a blocker or reacting to an attack; you are choosing the fight on your own turn, on your own terms.
The Dinosaur clause is the other lever, and it is where the card's identity sharpens. Point it at a Dinosaur you control and the cost collapses from three mana to a single green, a flat two-mana discount that makes fair green removal cheaper than almost anything the color offers. The synergy is not that bigger Dinosaurs cost less; the discount is the same regardless of size. It is that a tribe built on oversized bodies already fields the ideal fighter, so the +1/+1 counter and the discount both land on creatures happy to win any fight they enter. Outside that shell it is workmanlike removal with a growth rider; inside it, it rewards the exact thing the tribe wants to do, which is field the biggest creature and make it lethal to stand near.



