Zevlor, Elturel Exile + Blood Tribute + Wound Reflection

Zevlor, Elturel Exile
Blood Tribute
Wound Reflection

Requires
Blood Tribute in hand. All permanents on the battlefield. You control an untapped Vampire. 6bb available.
Steps
  1. Activate Zevlor by paying 2 and tapping it, causing you to copy the next spell you cast this turn that targets a single opponent for each other opponent
  2. Cast Blood Tribute with kicker by paying 4bb and tapping a Vampire you control, targeting any opponent
  3. Zevlor triggers, copying Peer into the Abyss for each opponent
  4. Resolve each Peer into the Abyss, causing each opponent to lose half their life total, rounded up, and you to gain life equal to the life lost this way
  5. At the beginning of your end step, Wound Reflection triggers, causing each opponent to lose life equal to the life they lost this turn
  6. Each opponent loses the game due to having zero or less life
Results
Each opponent loses the game. Near-infinite lifegain. Near-infinite lifeloss.