How can you create a combo with Cabaretti Charm, Dual Casting, Intruder Alarm, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Cabaretti Charm, Dual Casting, Intruder Alarm, Phyrexian Altar

Color identity: RGWU
Mana cost: {R}{R}{G}{W}
Steps:
  1. Cast Caberetti Charm by paying {R}{G}{W}.
  2. Holding priority, activate the creature with Dual Casting attached by paying {R} and tapping it, copying Cabaretti Charm.
  3. Resolve the copy of Cabaretti Charm, creating two 1/1 Citizen creature tokens.
  4. When the Citizen tokens enter the battlefield, Intruder Alarm triggers twice, untapping all creatures.
  5. Activate Phyrexian Altar by sacrificing a Citizen, adding {R}.
  6. Repeat from step 2.
  7. Once you have an arbitrarily large number of creature tokens, you may instead choose any of Cabaretti Charm's modes to deal infinite damage to any creature(s) and planeswalker(s) and/or get infinitely large creatures until end of turn.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite creature tokens
  - Infinite damage to creatures and planeswalkers
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinitely large creatures until end of turn
  - Infinite magecraft triggers
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Cabaretti Charm must be in your hand
  - Dual Casting must be on the battlefield
  - Intruder Alarm must be on the battlefield
  - Phyrexian Altar must be on the battlefield
  - Dual Casting attached to a creature you control that does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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