Junktroller

A defensive wall whose real job is the activated ability, not the blocking. Most graveyard hate of its era either exiled cards outright or hit the whole yard at once; this one operates one card at a time and sends the target to the bottom of its owner's library instead of removing it from the game. Against recursion engines and flashback chains, you do not need to destroy the graveyard so much as deny it the specific card it wants back, and bottoming that card costs the opponent a draw step (or several) to dig to it again. The tap symbol caps it at one activation per turn, so it answers a slow engine rather than a fast one, and the 0/6 body buys the time to do that work repeatedly across a long game. It also reaches into any graveyard, including your own, which turns it into a soft library-stocking tool when there is nothing on the other side worth attacking. As a piece of recurring graveyard interaction stapled to a body that blocks indefinitely, it occupies a different niche from the one-shot exile spells that share its purpose: those answer a threat once, while this answers a graveyard slowly, for as long as it survives.