Earthcraft + Spawnsire of Ulamog

Mana needed: {4} from various sources

G identity

Commander legal

The 2 combo pieces

What must be in place

At least one of those sources should be a basic land.

How to execute it

  1. Pay {4} to activate Spawnsire of Ulamog's first activated ability, creating two 0/1 colorless Eldrazi Spawn creature tokens.
  2. Use Earthcraft's activated ability on an Eldrazi spawn token, tapping it and untapping a basic land you control.
  3. Float the mana from that basic land and untap it again with the other Eldrazi spawn token.
  4. With {2} floating, sacrifice both of the Eldrazi spawn to make {2} more.
  5. Use the {4} you just made to again use Spawnsire of Ulamog's ability and repeat the loop.

What the combo produces