Lecturing Scornmage

Every "spells matter" one-drop before this asked you to cast spells at your own creatures or at nothing in particular to grow, which meant the counters and the interaction were often pulling in different directions: you wanted the burn on their board, not on your own tokens. Repartee resolves that tension by rewarding the removal you were already casting. The trigger fires whenever an instant or sorcery points at a creature, and it does not care whose creature that is, so aiming a kill spell at an opposing blocker grows this 1/1 as a byproduct of doing the thing you wanted to do anyway. That is the discipline holding the rate in check: the counter is a rider on interaction, never the reason for it, so a controlling build that hoards its removal for the right moment grows this only slowly, while a spell-dense tempo shell gets a body that advances the clock on top of every kill spell it was already firing. The single point of toughness keeps the ceiling honest; a one-toughness Warlock dies to the incidental damage a spellslinger deck is already throwing around. What it offers is a creature that appreciates across a game the more your deck was already built to interact, growth you pay for in spells you would have cast regardless. The "targets a creature" clause sits comfortably in black, the color that has always leaned hardest on point-and-kill removal; this simply asks that deck to make its interaction do double duty.