Mikaeus, the Unhallowed + Phyrexian Altar + Spike Feeder

BG identity

Commander legal

The 3 combo pieces

What must be in place

Spike Feeder has no +1/+1 counters on it.

How to execute it

  1. Activate Phyrexian Altar by sacrificing Spike Feeder, adding one mana of any color.
  2. Spike Feeder's undying ability triggers, returning itself to the battlefield with a +1/+1 counter on it.
  3. Activate Spike Feeder's second ability three times by removing three +1/+1 counters from it, causing you to gain six life.
  4. Repeat.

What the combo produces