How can you create a combo with Firestorm Phoenix, Phyrexian Altar, Elvish Piper, Intruder Alarm?
user
[START OF COMBO]This combo can be formed with Firestorm Phoenix, Phyrexian Altar, Elvish Piper, Intruder Alarm

Color identity: GUR
Mana cost: {G}
Steps:
  1. Activate Elvish Piper by paying {G} and tapping it, putting Firestorm Phoenix onto the battlefield from your hand.
  2. When Firestorm Phoenix enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  3. Activate Phyrexian Altar by sacrificing Firestorm Phoenix, adding {G}.
  4. Firestorm Phoenix is returned to your hand instead of being put into your graveyard.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana creatures you control can produce
  - Infinite untap of all creatures[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Firestorm Phoenix must be in your hand
  - Phyrexian Altar must be on the battlefield
  - Elvish Piper must be on the battlefield
  - Intruder Alarm must be on the battlefield
  - Elvish Piper does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant