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

Prerequisites

• You have at least five permanent cards in your graveyard.
• You control a land that enters the battlefield untapped and can tap to produce at least .

Steps

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

Effects

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