Stone-Seeder Hierophant + Drownyard Temple + Scorched Ruins + Overgrown Estate

Stone-Seeder Hierophant

Drownyard Temple

Scorched Ruins

Overgrown Estate

How it works

1. Activate Scorched Ruins by tapping it, adding CCCC.
2. Activate Stone-Seeder Hierophant by tapping it, untapping Scorched Ruins.
3. Activate Drownyard Temple by paying 3, returning it from your graveyard to the battlefield tapped.
4. When Drownyard Temple enters the battlefield, Stone-Seeder Hierophant triggers, untapping Stone-Seeder Hierophant.
5. Activate Overgrown Estate by sacrificing Drownyard Temple, causing you to gain 3 life.
6. Repeat.

This fascinating engine turns the massive colorless windfall from Scorched Ruins into an infinite cycle by leaning heavily on the battlefield mechanics of several distinct permanents. By tapping Scorched Ruins for four mana, you fund both the resurrection of Drownyard Temple via its own ability and the sacrifice cost demanded by Overgrown Estate, which bins Drownyard Temple right back into the graveyard. Every time Drownyard Temple re-enters the battlefield, it triggers Stone-Seeder Hierophant's landfall ability to untap itself, leaving its active tap-ability completely free to continually untap Scorched Ruins and keep the mana flowing.