Karn, Silver Golem + Salvaging Station + Ancient Den

Karn, Silver Golem

Salvaging Station

Ancient Den

How it works

1. Activate Ancient Den by tapping it, adding .
2. Activate Karn by paying 1, causing Ancient Den to become a creature until end of turn.
3. Ancient Den dies as a state-based action due to having 0 toughness, triggering Salvaging Station, untapping Salvaging Station.
4. Activate Salvaging Station by tapping it, returning Ancient Den from your graveyard to the battlefield.
5. Repeat.

This loop transforms a humble land into a lethal, self-sacrificing engine by letting Karn, Silver Golem animate Ancient Den into a creature with zero toughness, sending it straight to the graveyard. That death immediately triggers Salvaging Station's untap ability, allowing you to tap the Station to bring Ancient Den right back to the battlefield. By continuously repeating this cycle, you harness the interplay of animation and recycling to generate an endless stream of artifact entries, leaves, and death triggers.