How can you create a combo with Transcendence, Exquisite Archangel, Kiki-Jiki, Mirror Breaker, Mind Over Matter, Drogskol Reaver, Laboratory Maniac, Scout's Warning?
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[START OF COMBO]This combo can be formed with Transcendence, Exquisite Archangel, Kiki-Jiki, Mirror Breaker, Mind Over Matter, Drogskol Reaver, Laboratory Maniac, Scout's Warning

Color identity: URW
Mana cost: {3}{W}{W}{W}
Steps:
  1. Tap Kiki-Jiki to activate it, creating token copy of Drogskol Reaver.
  2. Discard a card to activate Mind Over Matter, untapping Kiki-Jiki.
  3. Pay {3}{W}{W}{W} to cast Transcendence.
  4. Transcendence's second ability triggers.
  5. In response, tap Kiki-Jiki to activate it, creating a token copy of Exquisite Archangel.
  6. Resolve Transcendence's ability modified by the token Exquisite Archangel's replacement effect, exiling the token and reducing your life total to your starting life total.
  7. Transcendence's second and third abilities each trigger.
  8. Resolve its third ability, gaining life equal to twice the amount you lost.
  9. The token and nontoken Drogskol Reavers each trigger, causing you to draw two cards.
  10. Discard a card to activate Mind Over Matter, untapping Kiki-Jiki.
  11. Tap Kiki-Jiki to activate it, creating a token copy of Exquisite Archangel.
  12. Repeat from step 6 until there is one card remaining in your library.
  13. Discard a card to activate Mind Over Matter, untapping a land you control.
  14. Tap that land to add one mana.
  15. Repeat the previous two steps three more times, until you have a total of {2}{W}{U} available.
  16. Pay {W} to cast Scout's Warning, letting you cast your next creature spell as though it had flash and drawing a card.
  17. Pay {2}{U} to cast Laboratory Maniac.
  18. Repeat steps 6 through 9 one more time, modifying a Drogskol Reaver ability with Laboratory Maniac's replacement effect.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite looting
  - Near-infinite copies of creatures you control
  - Near-infinite enters the battlefield
  - Near-infinite lifegain triggers
  - Near-infinite leaves the battlefield
  - Near-infinite mana lands, artifacts, and creatures you control can produce
  - Near-infinite self-discard triggers
  - Near-infinite untap of artifacts, creatures, and lands
  - Win the game[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Transcendence must be in your hand
  - Exquisite Archangel must be on the battlefield
  - Kiki-Jiki, Mirror Breaker must be on the battlefield
  - Mind Over Matter must be on the battlefield
  - Drogskol Reaver must be on the battlefield
  - Laboratory Maniac must be in your hand or in the library
  - Scout's Warning must be in your hand or in the library
  - One additional card in hand.
  - Your life total is greater than your starting life total.
[END OF COMBO PREREQUISITES]
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