How can you create a combo with Rooftop Storm, Enduring Renewal, Repository Skaab?
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[START OF COMBO]This combo can be formed with Rooftop Storm, Enduring Renewal, Repository Skaab

Color identity: WU
Mana cost: 
Steps:
  1. Cast Repository Skaab by paying {0}.
  2. When Repository Skaab enters the battlefield, it triggers, causing you to sacrifice it.
  3. When Repository Skaab dies, Enduring Renewal triggers, returning it to your hand from your graveyard.
  4. 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:
  - Rooftop Storm must be on the battlefield
  - Enduring Renewal must be on the battlefield
  - Repository Skaab must be in your hand
[END OF COMBO PREREQUISITES]
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