Doubling Season + Meticulous Excavation + Teferi, Timebender

Mana needed: {6}{W}{W}{U} each turn

GWU identity

Commander legal

The 3 combo pieces

• Doubling Season
• Meticulous Excavation
• Teferi, Timebender

How to execute it

1. Cast Teferi by paying {4}{W}{U}, which enters the battlefield with ten loyalty counters due to Doubling Season.
2. Activate Teferi's third loyalty ability by removing nine loyalty counters from it, causing you to take an extra turn after this one.
3. Activate Meticulous Excavation by paying {2}{W}, returning Teferi from the battlefield to your hand.
4. Repeat each turn.

What the combo produces

• Infinite turns
• Lock