Plaguecrafter's Familiar
Perpetual keyword-granting arrived with the digital-only rules engine, and this Rat is a small, honest use of it: it borrows nothing from the board except a moment of setup, then leaves a permanent mark on a card that has not been cast yet. That reach is the design wrinkle. Most enters-the-battlefield effects operate on things already in play or already on the stack; this one reaches back into your hand and rewrites a creature card while it is still uncast, so the deathtouch is waiting the instant the follow-up resolves rather than being layered on afterward. The change is durable in a way normal buffs are not: perpetual effects follow the card through shuffles, bounces, and re-draws, so a creature marked here keeps its deathtouch even after it dies and returns to hand or gets reshuffled. Against that durability, the grant only fires once, on entry, aimed at a single card in hand; there is no chaining it onto later draws unless you can rebuy the Rat itself. The body is a 1/1 with deathtouch, a fine early trade that gates ground attackers on its own, and the real payoff is turning one future beater into something that kills anything it touches. It is a low-ceiling, high-consistency piece of the perpetual toolbox, built to compound a small permanent edge rather than land one big swing.
