Bloodthirsty Conqueror

The word "opponent" is where the whole thing turns. Deathtouch and flying on a 5/5 body make a defensible clock, but the ability underneath keys off any life an opponent loses, from any source, not just combat with this creature. Every burn spell you cast, every edict that makes them pay life to sacrifice, every drain, every attacker that connects: all of it comes back to you at full value. In a multiplayer game the count scales per opponent, so a board wipe that pings the table or a symmetrical drain becomes wildly one-sided in your favor. What keeps the card from being a passive value magnet is that the body has to survive to keep the tap running. A flying deathtoucher is hard to attack into and unprofitable to block, but it remains a creature answerable at instant speed, and killing it shuts the engine off cleanly. The design sits in the mono-black drain-and-recur tradition, where lifegain is the resource that funds continually paying life for advantage without ever falling behind the clock. This one collapses that loop into a single trigger and aims it outward at everyone at once, converting any incidental damage on the table into a life swing large enough to make aggression against you a losing proposition.