How can you create a combo with Ugin's Nexus, Masterful Replication?
user
[START OF COMBO]This combo can be formed with Ugin's Nexus, Masterful Replication

Color identity: U
Mana cost: {5}{U}
Steps:
  1. Cast Masterful Replication by paying {5}{U}, causing each artifact you control to become a copy of Ugin's Nexus until end of turn.
  2. Put the original Ugin's Nexus and all other artifacts you control except one into exile due to the legend rule and their replacement effects, causing you to take that many extra turns after this one.[END OF COMBO STEPS]

Result:
  - Near-infinite turns[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Ugin's Nexus must be in your hand
  - Masterful Replication must be on the battlefield
  - You control at least one other artifact.
[END OF COMBO PREREQUISITES]
assistant