Nightmare Unmaking
Hand size becomes the aiming reticle here, which is the whole point: the caster sets the number that decides which half of the battlefield dies. The two modes carve the table around that single value. Empty your grip and the first mode reads as "power greater than zero," a near-total reset paid for with a bare hand; keep a full grip and it spares the small stuff while taking only the biggest threats, with the second mode doing the inverse, sweeping the chaff and leaving the fatties standing. Exile rather than destroy is the sharp part: it cuts recursion off at the source and steps around the indestructible clause that neuters lesser sweepers. That flexibility is bought with setup. The board it hits shifts every time you draw, discard, or empty out, so aiming the spell means building your hand to the right size on the cast turn, and often sequencing your own creatures onto the battlefield first so they sit on the safe side of the line. It belongs to the strain of black control that would rather banish a threat than kill it, and it hands the caster the rare privilege of choosing which half of the table the sweep was written for.
