How can you create a combo with Sidisi, Undead Vizier, Helm of the Host, Nexus of Fate?
user
[START OF COMBO]This combo can be formed with Sidisi, Undead Vizier, Helm of the Host, Nexus of Fate

Color identity: UB
Mana cost: {5}{U}{U} each turn
Steps:
  1. At the beginning of combat on your turn, Helm of the Host triggers, creating a non-legendary copy of Sidisi with haste.
  2. The non-legendary Sidisi enters the battlefield, triggering its exploit ability, sacrificing itself.
  3. Sidisi's second ability triggers, allowing you to search your library for Nexus of Fate, put it into your hand, and shuffle your library.
  4. Cast Nexus of Fate by paying {5}{U}{U}, causing you to take an extra turn after this one and shuffle it into your library.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Sidisi, Undead Vizier must be on the battlefield
  - Helm of the Host must be on the battlefield
  - Nexus of Fate must be in the library
  - Helm of the Host attached to Sidisi.
[END OF COMBO PREREQUISITES]
assistant