Spawning Pit + Ojer Taq, Deepest Foundation // Temple of Civilization + Krark-Clan Ironworks

Spawning Pit

Ojer Taq, Deepest Foundation // Temple of Civilization

Krark-Clan Ironworks

How it works

1. Activate Spawning Pit's second ability by paying 1 and removing two charge counters from it, creating three 2/2 Spawn artifact creature tokens.
2. Activate Krark-Clan Ironworks by sacrificing a Spawn, adding CC.
3. Activate Spawning Pit's first ability twice by sacrificing two Spawns, putting two charge counters on Spawning Pit.
4. Repeat.

This loop is a masterclass in artifact economy, supercharged by Ojer Taq, Deepest Foundation's replacement effect which triples every single creature token you make into three 2/2 Spawn artifact creature tokens instead of just one. With that multiplicative engine running, you can crack open one of those tokens with Krark-Clan Ironworks to generate two mana, which easily funds Spawning Pit's ability to cash in just two charge counters for a trio of new replacements. By sacrificing two of the newly minted tokens back to Spawning Pit to reload its counters and feeding the leftover Spawns to Krark-Clan Ironworks for mana, you establish a self-sustaining loop that generates infinite sacrifices, deaths, and enters-the-battlefield triggers.