Stone-Seeder Hierophant + Lake of the Dead + Urborg, Tomb of Yawgmoth + Drownyard Temple

Stone-Seeder Hierophant

Lake of the Dead

Urborg, Tomb of Yawgmoth

Drownyard Temple

How it works

1. Activate Lake of the Dead's second ability by tapping it and sacrificing Drownyard Temple, as it's a Swamp due to Urborg, adding .
2. Activate Stone-Seeder Hierophant by tapping it, untapping Lake of the Dead.
3. Activate Drownyard Temple's second ability by paying 3, returning it from your graveyard to the battlefield.
4. When Drownyard Temple enters, Stone-Seeder Hierophant triggers, untapping it.
5. Repeat.