Concordant Crossroads + Filigree Sages + Horn of Gondor + Phyrexian Altar

Mana needed: {3}

GU identity

Commander legal

The 4 combo pieces

What must be in place

You control at least six Humans.

How to execute it

  1. Activate Horn of Gondor by paying {3} and tapping it, creating at least six 1/1 Human Soldier creature tokens.
  2. Activate Phyrexian Altar by sacrificing six Human Soldiers, adding {5}{U}.
  3. Activate Filigree Sages by paying {2}{U}, untapping Horn of Gondor.
  4. Repeat.
  5. If you control seven Humans at the start of this combo, it will produce infinite creature tokens and infinite colored mana.

What the combo produces