Prerequisites
- Halo Fountain on the battlefield
- Phyrexian Altar on the battlefield
- Karn, Silver Golem on the battlefield
- Halo Fountain does not have summoning sickness
- available
Steps
- Activate Karn by paying , causing Halo Fountain to become an artifact creature until end of turn
- Activate Halo Fountain's first ability by paying , tapping it and untapping it, creating a 1/1 Citizen creature token
- Activate Phyrexian Altar by sacrificing the Citizen, adding
- Repeat from step 2
Results
Required Cards 3
Karn, Silver Golem
Legendary Artifact Creature — Golem