Pyrotechnics

Damage division was the design hook here, and the split is the whole card: four damage, any number of targets, distributed however you like. That puts it among the earliest multi-target burn that prices flexibility over efficiency, a line later refined by Arc Lightning and Forked Bolt. The rate is the problem. Five mana at sorcery speed for four total damage is a ratio red walked away from quickly once the color's burn curve tightened in the mid-90s; by the time Arc Lightning shaved it to three mana for three damage, Pyrotechnics was already a relic. What it preserves is the design idea in its loosest form: no minimum target count, no requirement to spread the damage at all, no rider on what the targets are. You can dump all four into one creature, snipe a pair of two-toughness blockers, or split between a planeswalker and a player to finish them in one cast. That permissiveness reads strangely against everything that followed it. Many later division spells tightened the math by lowering the total damage or attaching a death-trigger rider rather than loosening the spread, so the genre moved toward efficiency while this one stayed maximally open. The freedom is the only thing that keeps it worth a second look three decades on, even though five mana for four damage was a price red abandoned almost as soon as it was printed.