Phyrexian Altar + Primal Vigor + Prossh, Skyraider of Kher

Mana needed: {3}{B}{R}{G} plus enough mana to pay for commander tax, if applicable

BRG identity

Commander legal

The 3 combo pieces

How to execute it

  1. Cast Prossh from the command zone by paying {3}{B}{R}{G} and commander tax, if applicable.
  2. Prossh triggers, creating a number of 0/1 Kobolds of Kher Keep creature tokens equal to twice the amount of mana spent to cast Prossh.
  3. Activate Phyrexian Altar three times by sacrificing Prossh and two Kobolds, adding {B}{R}{G}.
  4. Choose to return Prossh to the command zone from your graveyard.
  5. Activate Phyrexian Altar by sacrificing a Kobold, adding {1}.
  6. Repeat step 5 until you have enough mana to cast Prossh.
  7. Repeat from step 1.

What the combo produces