Ruin Rat

Two small jobs bolted into one body, and the death trigger is what welds them together. The graveyard exile fires when this creature dies, which means the card is written to want its own death: it wants to trade in combat, block and die, or eat a removal spell, because any of those events resolves the same disruptive effect. That is the wrinkle worth dwelling on, because the deathtouch and the exile clause actually pull against each other. Deathtouch is normally a body an opponent routes around: nobody blocks a 1/1 with deathtouch if they can help it, and few will attack into it, so it tends to sit and threaten a trade rather than force one. But the death trigger reframes that stalemate. A creature the opponent politely ignores is a creature that still has to die eventually, whether through a chump you decide to make, a sacrifice outlet, or your own attack into a blocker, and the exile follows. Because the effect names a single card rather than sweeping the yard, it points at one thing (a flashback spell, a reanimation target, a delve fuel pile) instead of scattering, which keeps the disruption surgical and the mana cheap. What you get is attrition-resistant graveyard disruption riding on a combat piece: most exile-from-graveyard effects resolve once off an instant, but this one attaches itself to an event you can always arrange, since dying on schedule is the entire point of the design.