Avengers Disassembled

The "choose one or both" clause is the entire reason each half can afford to be so modest. The sweep is a three-damage board wipe that clears the x/3-and-smaller creatures without touching anything sturdier, and the land mode is red's land destruction of the fair variety: the target's controller may fetch a basic tapped, so what you actually buy is tempo and a color-screw against greedy or nonbasic-hungry manabases rather than a hard setback against a clean two-color deck. Neither effect would justify its own card at this cost; the flexibility is the value. Against a creature board you sweep, against a fixing-reliant opponent you crack the mana, and against the right situation you stack both and get the equivalent of two spells for the price of one. That upside is exactly why each mode is priced so conservatively on its own: the caster is paying for breadth, not raw power in either lane. It belongs to a long line of modal red spells that ask the caster to read the board before committing, because the modes are locked in when the spell goes on the stack, not adjusted afterward. And because both effects ride a single spell, the two-for-one is real but not bulletproof: one well-timed counter takes the whole thing, which is precisely the tension that keeps a card this broad from tipping into oppression.