Stone-Seeder Hierophant + Drownyard Temple + Lotus Vale + Squandered Resources

Stone-Seeder Hierophant

Drownyard Temple

Lotus Vale

Squandered Resources

How it works

1. Activate Lotus Vale by tapping it, adding three mana of any color.
2. Activate Stone-Seeder Hierophant by tapping it, untapping Lotus Vale.
3. Activate Drownyard Temple by paying 3, returning it from your graveyard to the battlefield tapped.
4. Drownyard Temple enters the battlefield, triggering Stone-Seeder Hierophant, untapping Stone-Seeder Hierophant.
5. Activate Squandered Resources by sacrificing Drownyard Temple, adding C.
6. Repeat.