Gandalf the White + Ancestral Statue + Clock of Omens + Everflowing Chalice

Gandalf the White
Ancestral Statue
Clock of Omens
Everflowing Chalice

Requires
Ancestral Statue in hand. All other permanents on the battlefield. Everflowing Chalice has at least four charge counters on it. You control a nontoken noncreature artifact with mana value less than or equal to the number of charge counters on Everflowing Chalice minus four.
Steps
  1. Activate Everflowing Chalice by tapping it, adding at least cccc
  2. Cast Ancestral Statue by paying 4
  3. When Ancestral Statue enters the battlefield, it triggers twice
  4. Holding priority, activate Clock of Omens by tapping the nontoken noncreature artifact and Ancestral Statue, untapping Everflowing Chalice
  5. Resolve both Ancestral Statue triggers, returning it and the nontoken noncreature artifact to your hand
  6. Cast the noncreature artifact by paying its mana cost
  7. Repeat
  8. If the noncreature artifact has a mana value less than the number of charge counters on Everflowing Chalice minus four, this combo nets infinite colorless mana
Results
Infinite colorless mana. Infinite ETB. Infinite LTB. Infinite storm count.