Tomebound Lich
Deathtouch and lifelink on the same body is the classic defensive pillar: a creature that trades up in combat, dares attackers into a wall that gains you life, and asks nothing of you beyond blocking. Stapling a looter on top changes what the card is for. The 1/3 frame reads like a roadblock, but the draw-and-discard trigger fires both on entry and on any point of combat damage to a player, which quietly makes this a creature that wants to attack. Deathtouch is what lets it get there: a 1/3 with deathtouch is an unappealing block, so opponents tend to let the point through, and every hit refills your hand while it drains their life a sliver at a time. The whole design leans on the tension between a stat line built to defend and a payoff built to poke, and it resolves that tension by making one damage matter more than one damage usually does. The looting is symmetric filtering rather than pure card advantage: you draw, then discard, so it smooths draws and feeds a graveyard rather than growing your hand. That makes it a natural fit for decks that want cards in the yard and a slow, grinding clock, where a body this hard to attack profitably keeps looting turn after turn.

