How can you create a combo with Felidar Guardian, Machine God's Effigy?
user
[START OF COMBO]This combo can be formed with Felidar Guardian, Machine God's Effigy

Color identity: WU
Mana cost: {4}
Steps:
  1. Cast Machine God's Effigy by paying {4}.
  2. Choose to have Machine God's Effigy enter the battlefield as a copy of Felidar Guardian, except it's an artifact.
  3. When Machine God's Effigy enters the battlefield, it triggers, blinking Felidar Guardian.
  4. When Felidar Guardian enters the battlefield, it triggers.
  5. Holding priority, activate Machine God's Effigy by tapping it, adding {U}.
  6. Resolve the Felidar Guardian trigger, blinking Machine God's Effigy.
  7. Repeat from step 2.[END OF COMBO STEPS]

Result:
  - Infinite blue mana
  - Infinite enters the battlefield
  - Infinite leaves the battlefield[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Felidar Guardian must be on the battlefield
  - Machine God's Effigy must be in your hand
[END OF COMBO PREREQUISITES]
assistant