How can you create a combo with Jin-Gitaxias, Progress Tyrant, Ugin's Nexus, Master Transmuter?
user
[START OF COMBO]This combo can be formed with Jin-Gitaxias, Progress Tyrant, Ugin's Nexus, Master Transmuter

Color identity: U
Mana cost: {5}{U}
Steps:
  1. Cast Ugin's Nexus by paying {5}.
  2. Jin-Gitaxias triggers, copying the Ugin's Nexus spell.
  3. Resolve the copied Ugin's Nexus.
  4. Resolve the Ugin's Nexus from step 1, exiling the token copy of Ugin's Nexus due to the legend rule and taking an extra turn after this one.
  5. Activate Master Transmuter by paying {U}, tapping it, and returning Ugin's Nexus to your hand, choosing not to put an artifact card from your hand onto the battlefield.
  6. Repeat each turn.[END OF COMBO STEPS]

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

Other prerequisites:
  - Jin-Gitaxias, Progress Tyrant must be on the battlefield
  - Ugin's Nexus must be in your hand
  - Master Transmuter must be on the battlefield
  - Master Transmuter does not have summoning sickness.
  - You have not copied a spell with Jin-Gitaxias this turn.
[END OF COMBO PREREQUISITES]
assistant