Mark for Death

The Falter effect has been red's alpha-strike enabler since the earliest sets: tap the wall or forbid blocking outright, and the attack connects. This one inverts the logic. Instead of clearing the blockers, it drafts one. The named creature must block if able, gets untapped so even a defender tapped out from attacking last turn is dragged into the fight, and every other body that player controls stands down. The untap rider is the small piece of engineering that keeps the conscription honest: "blocks if able" does nothing against a creature that cannot legally block, so forcing it open guarantees the chosen defender is physically available to step in front of your team. What the spell does not do is assign combat for you. It picks who must block, not what they block; if more than one of your attackers is legal, the defending player still chooses which one their conscripted creature meets. The result is a funnel with a caveat: you strip away every blocker but one, then hope the trade the opponent is forced into still favors you. Point it at a lone deathtoucher or an oversized attacker and the math tilts hard, since the defender has few good options left. But the elegance is in the reduction, not full control: red rarely gets to force a specific block, and this comes as close as the color's toolkit allows while still leaving the last decision on the other side of the table.