Ashnod's Altar + Phyrexian Altar + 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} plus commander tax, if applicable.
  2. Prossh triggers, creating a 0/1 Kobold of Kher Keep token for each mana spent to cast Prossh.
  3. Activate Ashnod's Altar by sacrificing Prossh, adding {C}{C}.
  4. Choose to have Prossh returned to the command zone.
  5. Activate Phyrexian Altar by sacrificing three Kobold of Kher Keep tokens, adding {B}{R}{G}.
  6. Activate Ashnod's Altar by sacrificing a Kobold of Kher Keep token, adding {C}{C}.
  7. Repeat step 6 until you have enough mana to cast Prossh.
  8. Repeat from step 1.

What the combo produces