Bartolomé del Presidio + Biotransference + Dross Scorpion + Elemental Mastery

RWB identity

Commander legal

The 4 combo pieces

• Bartolomé del Presidio
• Biotransference
• Dross Scorpion
• Elemental Mastery

How to execute it

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 Bartolomé del Presidio 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 Bartolomé del Presidio ability.
5. Repeat.

What the combo produces

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