Broadside Barrage
Five damage at instant speed is the number worth studying here, because it clears almost every fair creature and spills onto planeswalkers besides, and it does so in a color pair that has historically paid a premium for its removal. Izzet's kill spells tend to arrive with strings attached: a damage ceiling too low for the sturdier midrange bodies, or a target restriction narrow enough to whiff. This one buys a clean five, enough to answer the things a same-cost burn spell cannot, and bolts a loot onto the back end. That loot reads at first like insurance against a dead draw, but it isn't: a legal target is still required to put the spell on the stack, so against an empty board it strands in hand like any other pure removal. What the draw-then-discard actually buys is smoothing on the turns the spell resolves. The math stays a clean one-for-one (loot is selection, not advantage), so the value is in the sculpting: kill the threat, then swap a card you don't want for a fresh look, or pitch something you'd rather have in the graveyard. It is a rate-and-filter package built for decks that would rather cast removal than hold it, the filtering there to keep a reactive spell from feeling purely reactive when it connects. Nothing about the construction is flashy; it prices the card selection modestly and prices itself to match.
