Ekthi, Contaminator Priest + Sword of the Meek + Umbral Collar Zealot

Ekthi, Contaminator Priest

Sword of the Meek

Umbral Collar Zealot

How it works

1. Cast Sword of the Meek by paying 2.
2. When Sword of the Meek enters, its living weapon ability granted to it by Ekthi triggers.
3. Holding priority, activate Umbral Collar Zealot by sacrificing Sword of the Meek.
4. Resolve the Sword of the Meek trigger, creating a 0/0 Phyrexian Germ creature token. It'll enter as a 1/1 due to Ekthi's static effect.
5. When the Phyrexian Germ enters, Sword of the Meek triggers, returning Sword of the Meek from your graveyard to the battlefield attached to the Phyrexian Germ.
6. Repeat from step 2.

This clever loop turns the living weapon ability granted by Ekthi, Contaminator Priest into a recurring engine for Sword of the Meek. As the Sword enters, its newly acquired ability triggers to create a Germ token, which is instantly bolstered into a 1/1 by Ekthi, Contaminator Priest's static pump so that it meets Sword of the Meek's resurrection condition. By sacrificing Sword of the Meek to Umbral Collar Zealot's ability in response, you bin the Equipment just in time for the Germ's entry to trigger Sword of the Meek from the graveyard, looping the process endlessly to fuel infinite surveil triggers, artifact sacrifices, and entry/leave-the-battlefield events.