How can you create a combo with Goblin Welder, Corridor Monitor, Esper Sojourners?
user
[START OF COMBO]This combo can be formed with Goblin Welder, Corridor Monitor, Esper Sojourners

Color identity: WUBR
Mana cost: 
Steps:
  1. Activate Goblin Welder by tapping it, sacrificing Esper Sojourners and returning Corridor Monitor from your graveyard to the battlefield.
  2. Esper Sojourners and Corridor Monitor trigger.
  3. Resolve the Esper Sojourners trigger, untapping Goblin Welder.
  4. Holding priority, activate Goblin Welder by tapping it, sacrificing Corridor Monitor and returning Esper Sojourners from your graveyard to the battlefield.
  5. Resolve the Corridor Monitor trigger from step 2, untapping Goblin Welder.
  6. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Goblin Welder must be on the battlefield
  - Corridor Monitor must be in the graveyard
  - Esper Sojourners must be on the battlefield
  - Goblin Welder does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant