Bog Glider + Dryad Arbor + Thornbite Staff + Mortuary + Conspiracy

Bog Glider

Dryad Arbor

Thornbite Staff

Mortuary

Conspiracy

How it works

1. Activate Bog Glider by tapping it and sacrificing Dryad Arbor.
2. When Dryad Arbor dies, Mortuary and Bog Glider trigger.
3. Resolve the Bog Glider trigger, untapping it.
4. Resolve the Mortuary trigger, putting Dryad Arbor on top of your library from your graveyard.
5. Resolve the Bog Glider ability from step 1, searching your library for Dryad Arbor and putting it onto the battlefield.
6. Repeat.

This ingenious loop turns a modest land into an infinite engine, powered entirely by a clever identity swap. With Conspiracy naming Mercenary, your Dryad Arbor becomes a Mercenary card while in your library and graveyard, allowing Bog Glider to pluck it straight out of your deck by sacrificing it as a land. Every time Dryad Arbor hits the graveyard, Mortuary quietly scoops it right back to the top of your library so Bog Glider can fetch it out all over again. While Thornbite Staff isn't strictly required for this core land-sac recycling loop, the engine effortlessly generates infinite death and entering-the-battlefield triggers for any other payoffs you might have waiting in the wings.