Circle of Dreams Druid, and Singing Bell Strike

Prerequisites

• Circle of Dreams Druid on the battlefield
• Singing Bell Strike on the battlefield
• Singing Bell Strike attached to Circle of Dreams Druid
• Circle of Dreams Druid is untapped and does not have summoning sickness
• You control at least seven creatures

Steps

1. Activate Circle of Dreams Druid by tapping it, adding at least seven
2. Activate Circle of Dreams Druid by paying , untapping it
3. Repeat

Results

• Infinite green mana