How can you create a combo with Goblin Welder, Corridor Monitor, Dross Scorpion, Liquimetal Torque?
user
[START OF COMBO]This combo can be formed with Goblin Welder, Corridor Monitor, Dross Scorpion, Liquimetal Torque

Color identity: UR
Mana cost: 
Steps:
  1. Activate Liquimetal Torque's second ability by tapping it, causing Goblin Welder to become an artifact in addition to its other types until end of turn.
  2. Activate Goblin Welder by tapping it, sacrificing Dross Scorpion and returning Corridor Monitor from your graveyard to the battlefield.
  3. Dross Scorpion and Corridor Monitor trigger.
  4. Resolve the Dross Scorpion trigger, untapping Goblin Welder.
  5. Holding priority, activate Goblin Welder by tapping it, sacrificing Corridor Monitor and returning Dross Scorpion from your graveyard to the battlefield.
  6. Resolve the Corridor Monitor trigger, untapping Goblin Welder.
  7. Repeat from step 2.[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
  - Dross Scorpion must be on the battlefield
  - Liquimetal Torque must be on the battlefield
  - Goblin Welder does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant