Arco-Flagellant

The 3/1 body tells you the whole risk profile: a creature built to attack and nothing else, with the can't-block clause locking it into that role permanently. Squad and Endurant then turn that fragility into a wager. Squad lets a single cast become a whole rank of identical bodies, each token a copy of the original, so the card scales with however much mana you can afford to dump into it (the extra payments are generic, which matters more in a multicolor shell than the black-heavy exterior suggests). Endurant answers the obvious objection: a swarm of one-toughness attackers folds to a single wrath or a stray blocker, but paying three life keeps a body alive through destruction-based removal for the crack-back. Life is the balancing lever; indestructibility is repeatable but never free, so a wide board becomes a bet against your own life total, one payment at a time. It reads as flavor-first design (the frenzied fanatic that cannot defend and does not fear death), but the mechanics are doing real strategic work: a token engine that rewards mana investment, guarded by a resource black is uniquely happy to spend. Black has always had aggressive tokens that trade life for pressure; the wrinkle here is that every copy Squad produces carries its own self-preservation switch, so the more you make, the more life the board can convert into resilience.