Earthshaker Giant
A finisher built for a specific kind of board: the go-wide green deck that has already committed bodies and needs one card to convert them into lethal. The 6/6 trampler is fine on its own, but the enter trigger is the payoff, handing every other creature you control +3/+3 and trample for a turn. That last word is the operative one. Green anthem effects are common, but stapling trample onto the buff is what turns a stalled ground assault into damage that pushes through blockers, and it does so at the moment the Giant arrives rather than as a static aura you have to protect. The buff is one-shot, so this is a card you cast to end things, not a value engine you leave on the table to grind: play it into a developed board and swing, or hold it until the alpha strike is lethal. That single-turn window is also the honest cost. Wipe the board or trade off the team first and the trigger has nothing to buff, leaving a 6/6 trampler for six. As a design, it collapses the classic overrun-plus-anthem pattern into one card with a real body attached, aimed squarely at the token and creature-swarm decks that want a top-end that closes rather than merely stabilizes.

