Gretchen Titchwillow + Matzalantli, the Great Door // The Core + Oboro Breezecaller

GU identity

Commander legal

The 3 combo pieces

• Gretchen Titchwillow
• Matzalantli, the Great Door // The Core
• Oboro Breezecaller

What must be in place

You have at least five permanent cards in your graveyard.

How to execute it

1. Activate The Core by tapping it, adding at least {G}{G}{G}{G}{G} or {U}{U}{U}{U}{U}.
2. Activate a land that enters untapped by tapping it, adding at least {G/U}.
3. Activate Oboro Breezecaller by paying {2} and returning the land that taps for {G/U} from the battlefield to your hand, untapping The Core.
4. Activate Gretchen by paying {2}{G}{U}, causing you to draw a card and put the land from step 3 onto the battlefield.
5. Repeat.

What the combo produces

• Infinite card draw
• Infinite draw triggers
• Near-infinite landfall triggers