Sacred Mesa, Ashnod's Altar, and Earthcraft

Prerequisites

• Sacred Mesa on the battlefield
• Ashnod's Altar on the battlefield
• Earthcraft on the battlefield
• At least 1 basic land under your control
• available

Steps

1. Activate Sacred Mesa to create a 1/1 pegasus creature
2. Activate Earthcraft to tap the token and untap a basic land
3. Tap the land for mana
4. Sacrifice the token for
5. Repeat

Results

• Infinite colorless mana
• Infinite ETB
• Infinite LTB
• Infinite tokens