Myr Battlesphere + Phyrexian Altar + Recurring Nightmare

B identity

The 3 combo pieces

What must be in place

You control at least one creature.

How to execute it

  1. Activate Recurring Nightmare by sacrificing a creature and returning it from the battlefield to your hand, returning Myr Battlesphere from your graveyard to the battlefield.
  2. When Myr Battlesphere enters the battlefield, it triggers, creating four 1/1 Myr artifact creature tokens.
  3. Activate Phyrexian Altar three times by sacrificing Myr Battlesphere and two Myrs, adding {2}{B}.
  4. Cast Recurring Nightmare by paying {2}{B}.
  5. Repeat.

What the combo produces