Prerequisites
- Rex, Cyber-Hound on the battlefield
- Pili-Pala in exile
- Vhal, Candlekeep Researcher in exile
Steps
- Activate Rex using Vhal's ability by tapping it, adding at least
that cannot be spent to cast spells from your hand
- Activate Rex using Pili-Pala's ability by paying
and untapping it, adding one mana of any color
- Repeat
Results
Required Cards 3
Rex, Cyber-Hound
Legendary Artifact Creature — Robot Dog
Pili-Pala
Artifact Creature — Scarecrow
Vhal, Candlekeep Researcher
Legendary Creature — Human Wizard