Prerequisites
- Voltaic Key on the battlefield
- Rings of Brighthearth on the battlefield
- Five Hundred Year Diary on the battlefield
Steps
- Activate Five Hundred Year Diary by tapping it, adding at least
- Activate Voltaic Key by paying
and tapping it, targeting itself - Rings of Brighthearth triggers, causing you to pay
to copy Voltaic Key's ability, targeting Five Hundred Year Diary - Resolve both Voltaic Key abilities, untapping it and Five Hundred Year Diary
- Repeat
Results
- Infinite blue mana
- Infinite mana artifacts you control can produce
- Infinite untap of artifacts you control
Required Cards 3
Rings of Brighthearth
Artifact
Five Hundred Year Diary
Legendary Artifact — Clue
