Biomancer's Familiar + Duergar Mine-Captain + Tazri, Stalwart Survivor

WUBRG identity

Commander legal

The 3 combo pieces

• Biomancer's Familiar
• Duergar Mine-Captain
• Tazri, Stalwart Survivor

What must be in place

Duergar Mine-Captain does not have summoning sickness.

How to execute it

1. Activate Duergar Mine-Captain by tapping it, adding {R/W} that can only be spent to activate abilities.
2. Activate Duergar Mine-Captain by paying {R/W} and untapping it, giving attacking creatures +1/+0 until end of turn.
3. Repeat.

What the combo produces

• Infinite power for certain creatures until end of turn