Gemstone Array + Mana Echoes + Phyrexian Altar + Squee, the Immortal

Mana needed: {1}{R}

R identity

Commander legal

The 4 combo pieces

What must be in place

You control at least three Goblins.

How to execute it

  1. Activate Phyrexian Altar by sacrificing Squee, adding {R}.
  2. Cast Squee from your graveyard by paying {1}{R}{R}.
  3. When Squee enters the battlefield, Mana Echoes triggers, adding {C} for each Goblin you control.
  4. Activate Gemstone Array's first ability by paying {2}, putting a charge counter on it.
  5. Activate Gemstone Array's second ability by removing a charge counter from it, adding {R}.
  6. Repeat.
  7. If you control four or more Goblins, this combo nets infinite mana.

What the combo produces