Dross Scorpion, Elemental Mastery, Bloodflow Connoisseur, and Biotransference

Prerequisites

• Dross Scorpion on the battlefield
• Elemental Mastery on the battlefield
• Bloodflow Connoisseur on the battlefield
• Biotransference on the battlefield

Steps

1. Activate the creature with Elemental Mastery attached by tapping it, creating a number of 1/1 Elemental creature tokens with haste equal to its power
2. Activate Bloodflow Connoisseur by sacrificing an Elemental
3. When the Elemental dies as an artifact due to Biotransference, Dross Scorpion triggers, untapping the creature with Elemental Mastery attached
4. Resolve the Bloodflow Connoisseur ability
5. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite creature tokens with haste
• Infinite +1/+1 counters on Bloodflow Connoisseur