Emry, Lurker of the Loch + Displacer Kitten + Pestermite + Lion's Eye Diamond

Emry, Lurker of the Loch

Displacer Kitten

Pestermite

Lion's Eye Diamond

How it works

1. Activate Emry by tapping it, targeting Lion's Eye Diamond.
2. Cast Lion's Eye Diamond from your graveyard by paying 0.
3. Displacer Kitten triggers, blinking Pestermite.
4. When Pestermite enters, it triggers, untapping Emry.
5. Activate Lion's Eye Diamond by discarding your hand and sacrificing it.
6. Repeat.

This clever loop leverages Emry, Lurker of the Loch to repeatedly pull Lion's Eye Diamond out of your graveyard, utilizing its heavy mana-producing sacrifice ability without the usual drawback of discarding your hand when it's recast. Each time you cast the artifact, Displacer Kitten's avoidance trigger blinks Pestermite, whose entry ability immediately untaps Emry so the whole cycle can begin anew. Pestermite's flash and flying ensure it's easily deployed, and Emry's own affinity for artifacts helps mitigate her casting cost if she ever leaves the battlefield.