Prerequisites
- Grolnok, the Omnivore on the battlefield
- Sensei's Divining Top on the battlefield
- Jace's Erasure on the battlefield
- Cloud Key on the battlefield
- "Artifact" chosen with Cloud Key
Steps
- Activate Sensei's Divining Top by tapping it, drawing a card and putting it on top of your library
- Jace's Erasure triggers, causing yourself to mill Sensei's Divining Top
- Sensei's Divining Top is put into your graveyard, triggering Grolnok, exiling Sensei's Divining Top with a croak counter on it
- Cast Sensei's Divining Top from exile by paying
- Repeat
Results
Required Cards 4
Grolnok, the Omnivore
Legendary Creature — Frog
Sensei's Divining Top
Artifact