Seismic Elemental

The Falter effect on a body, which is a cleaner package than the genre usually offers. Single-turn unblockable spells (the cards that strip away ground defenders so your team can swing through) have always been pure tempo: spend a card, end the game, contribute nothing afterward. Attaching that effect to a 4/4 fixes the structural problem of a Falter, which is that it leaves you down a card if the attack does not finish the job. Here the body stays on the board, so even a non-lethal alpha strike banks a real threat going forward. The wrinkle worth noting is the asymmetry of the wording: it stops only creatures without flying, which means flying blockers still answer the swing and the elemental itself, lacking evasion, gets chump-blocked once defenses recover. That makes it a finisher that wants a wide, grounded board behind it rather than a top-end bomb you cast into nothing. The trigger is one-shot on entry, so its window closes after the combat that follows resolution; flicker and reanimation rebuy the effect, but the card does not loop on its own. A solid synthesis of the Falter lineage with the curve-topping creature, trading the maximal go-wide blowout of a pure spell for the resilience of leaving a body on the table.