Displacer Kitten + Mana Echoes + Emeritus of Truce // Swords to Plowshares + Stonework Packbeast

Displacer Kitten

Mana Echoes

Emeritus of Truce // Swords to Plowshares

Stonework Packbeast

How it works

1. Cast the copy of Swords to Plowshares from exile by paying its mana cost.
2. When you cast that spell, Displacer Kitten triggers, flickering Emeritus of Truce.
3. When Emeritus of Truce // Swords to Plowshares enters, it and Mana Echoes triggers.
4. Resolve the Emeritus of Truce trigger, causing an opponent to create a 1/1 Inkling creature token with flying and preparing Emeritus of Truce.
5. Resolve the Mana Echoes trigger, adding at least CCC since both Displacer Kitten and Stonework Beast share a creature type with Emeritus of Truce.
6. Resolve Swords to Plowshares, exiling a creature an opponent controls and causing them to gain life.
7. Activate Energy Refractor by paying 2, adding one colored mana.
8. Repeat any number of times.

This clever loop spins up endless resources by using the adventurous Emeritus of Truce // Swords to Plowshares as both our engine and our finisher, casting its back-half copy repeatedly from exile. Every time you cast that noncreature spell, Displacer Kitten steps in to blink Emeritus of Truce // Swords to Plowshares right back onto the battlefield. That new entry triggers Mana Echoes, which feasts on the shared typing of Stonework Packbeast to shower you with colorless mana that gets filtered into colored mana using Stonework Packbeast's own ability. Meanwhile, the entry also fires off the creature's own trigger to gift your opponents Inkling tokens—keeping their creature count high enough to keep the card prepared—while Swords to Plowshares systematically banishes every creature they control.