Scouring Swarm + Drownyard Temple + Ashnod's Altar + Lithatog

Scouring Swarm

Drownyard Temple

Ashnod's Altar

Lithatog

How it works

1. Activate Lithatog by sacrificing Drownyard Temple.
2. Each Scouring Swarm you control triggers, creating a tapped token copy of itself.
3. Resolve the Lithatog ability.
4. If you control four or more Scouring Swarms, activate Ashnod's Altar by sacrificing a Scouring Swarm, adding .
5. Repeat step 4 until you control three Scouring Swarms or until you have 3 available, whichever comes first.
6. Activate Drownyard Temple by paying 3, returning it from your graveyard to the battlefield.
7. Repeat.

This clever loop turns the graveyard into a reliable engine by leveraging Lithatog to feed Drownyard Temple straight into the dirt, where its activation cost can be paid over and over. Every time that land hits the graveyard, Scouring Swarm's trigger swoops in to multiply your forces—assuming you've met the threshold to start churning out copies of the Swarm rather than mere Insects. Meanwhile, Ashnod's Altar steps in to convert those freshly minted token hordes into the colorless mana required to continually pull Drownyard Temple back to the battlefield.