How can you create a combo with Horn of Gondor, Filigree Sages, Phyrexian Altar, Concordant Crossroads?
user
[START OF COMBO]This combo can be formed with Horn of Gondor, Filigree Sages, Phyrexian Altar, Concordant Crossroads

Color identity: GU
Mana cost: {3}
Steps:
  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.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite creature tokens with haste
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana artifacts you control can produce
  - Infinite sacrifice triggers
  - Infinite untap of artifacts you control[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You control at least six Humans.
[END OF COMBO PREREQUISITES]
assistant