Guttersnipe

The clearest statement spellslinger ever got from a creature: a body that converts your deck's instants and sorceries into a reliable clock without asking you to deal lethal in burn alone. Where Young Pyromancer turns the same spell density into a wide board, this one turns it into a count toward zero, doing two to each opponent on every cast regardless of what the spell itself targets or accomplishes. That divorces your damage output from your removal and card draw, so the cantrips and interaction you were already casting all become incidental burn. The restriction that keeps it fair is the body: a 2/2 with no protection sits squarely in range of nearly everything, and a turn spent killing it is a turn the opponent isn't dying to it. The math is what makes it a build-around rather than a goodstuff include. One trigger is a Shock you stapled to a card you wanted to play anyway; chain a flurry of cheap spells in a single turn and the damage stacks faster than an opponent expects, the reason it has anchored storm-adjacent and ramp-into-a-flurry shells far more than it has filled a curve. It does nothing to defend itself and contributes nothing to the board until the spells start flowing, but in a deck built to flow, it changes the question from "can I draw enough burn" to "how many spells can I chain before they find an answer."