Tarrian's Soulcleaver + Scurry Oak + Bloodflow Connoisseur

Tarrian's Soulcleaver
Scurry Oak
Bloodflow Connoisseur

Requires
Tarrian's Soulcleaver must be on the battlefield (attached to Scurry Oak). Scurry Oak must be on the battlefield. Bloodflow Connoisseur must be on the battlefield. You have a way to put a +1/+1 counter on Scurry Oak.
Steps
  1. Put a +1/+1 counter on Scurry Oak.
  2. Scurry Oak triggers, creating a 1/1 Squirrel creature token.
  3. Activate Bloodflow Connoisseur by sacrificing the Squirrel.
  4. When the Squirrel dies, Tarrian's Soulcleaver triggers, putting a +1/+1 counter on Scurry Oak.
  5. Scurry Oak triggers, creating a 1/1 Squirrel creature token.
  6. Resolve the Bloodflow Connoisseur ability, putting a +1/+1 counter on it.
  7. Repeat from step 3.
Results
Infinite LTB. Infinite ETB. Infinite sacrifice triggers. Infinite death triggers. Infinite +1/+1 counters on Bloodflow Connoisseur. Infinite +1/+1 counters on Scurry Oak.

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