Isochron Scepter + Vitalize + Animate Artifact
Isochron Scepter
Vitalize
Animate Artifact
Requires
Isochron Scepter must be on the battlefield.
Vitalize must be in exile (exiled by Isochron Scepter).
Animate Artifact must be on the battlefield.
Animate Artifact attached to Isochron Scepter.
You control creatures that can tap to produce at least 
.
.
Steps
- Activate creatures you control by tapping those, adding .
- Activate Isochron Scepter by paying
and tapping it, casting a copy of Vitalize without paying its mana cost, untapping all creatures. - Repeat.
Results
Infinite mana creatures you control can produce. Infinite storm count.