Prerequisites
- Earthcraft on the battlefield
- Fertile Ground on the battlefield
- Horseshoe Crab on the battlefield
Steps
- Activate the basic land with Fertile Ground attached by tapping it, adding at least
- Fertile Ground triggers, adding
- Activate Earthcraft by tapping Horseshoe Crab, untapping the basic land
- Activate Horseshoe Crab by paying , untapping it
- Repeat
- If the basic land is an Island, you may add mana of any color using Fertile Ground's trigger, and you may infinitely repeat steps 3-4 with any other basic land you control
Results
Required Cards 3
Fertile Ground
Enchantment — Aura
Horseshoe Crab
Creature — Crab