Lurrus of the Dream-Den + Displacer Kitten + Sarcatog

Lurrus of the Dream-Den

Displacer Kitten

Sarcatog

How it works

1. Cast the artifact from your graveyard by paying 0.
2. Displacer Kitten triggers, blinking Lurrus.
3. Activate Sarcatog by sacrificing the artifact cast in step 1, giving it +1/+1 until end of turn.
4. Repeat.

This clever loop relies on Lurrus of the Dream-Den sitting on your battlefield, allowing you to repeatedly pull a cheap artifact right back out of your graveyard for zero mana. Every time you recast that artifact, Displacer Kitten's trigger blinks Lurrus away and brings it right back, continuously resetting the once-per-turn casting restriction so you can do it all over again. As the artifact bounces in and out of play, you feed it directly to Sarcatog to continuously pump its stats while generating an endless stream of enters-the-battlefield and leaves-the-battlefield triggers.