Bog Glider + Dryad Arbor + Retreat to Coralhelm + Mortuary + Conspiracy

Bog Glider

Dryad Arbor

Retreat to Coralhelm

Mortuary

Conspiracy

How it works

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

This clever loop turns Bog Glider and its sacrifice outlet into a self-sustaining engine by utilizing Conspiracy to rewrite creature types so that Dryad Arbor counts as a valid Mercenary search target. Every time you sacrifice Dryad Arbor, Mortuary steps in to instantly recycle it from the graveyard straight to the top of your library, ensuring it's always ready to be found again. As Dryad Arbor enters the battlefield, Retreat to Coralhelm triggers its landfall ability to untap Bog Glider, neatly resetting the entire process and generating infinite triggers of every flavor.