How can you create a combo with Lathliss, Dragon Queen, Mothdust Changeling, Cloudstone Curio, Phyrexian Altar?
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[START OF COMBO]This combo can be formed with Lathliss, Dragon Queen, Mothdust Changeling, Cloudstone Curio, Phyrexian Altar

Color identity: UR
Mana cost: {U}
Steps:
  1. Cast Mothdust Changeling by paying {U}.
  2. Mothdust Changeling enters the battlefield, triggering Cloudstone Curio and Lathliss.
  3. Resolve the Cloudstone Curio trigger, choosing not to return anything to your hand from the battlefield.
  4. Resolve the Lathliss trigger, creating a 5/5 Dragon creature token.
  5. The Dragon enters the battlefield, triggering Cloudstone Curio, returning Mothdust Changeling from the battlefield to your hand.
  6. Activate Phyrexian Altar by sacrificing the Dragon token, adding {U}.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Lathliss, Dragon Queen must be on the battlefield
  - Mothdust Changeling must be in your hand
  - Cloudstone Curio must be on the battlefield
  - Phyrexian Altar must be on the battlefield
[END OF COMBO PREREQUISITES]
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