Whisper, Blood Liturgist + Necrotic Ooze + Black Carriage + Myr Battlesphere

Whisper, Blood Liturgist

Necrotic Ooze

Black Carriage

Myr Battlesphere

How it works

1. During your upkeep, activate Necrotic Ooze using Whisper's ability by tapping it and sacrificing two other creatures, returning Myr Battlesphere from your graveyard to the battlefield.
2. When Myr Battlesphere enters the battlefield, it triggers, creating four 1/1 Myr artifact creature tokens.
3. Activate Necrotic Ooze using Black Carriage's ability by sacrificing Myr Battlesphere, untapping Necrotic Ooze.
4. Repeat.

This loop transforms your graveyard into a perpetual motion machine by turning Necrotic Ooze into a multi-talented engine. By utilizing Whisper, Blood Liturgist's activated ability granted to the Ooze, you can sacrifice fodder to continually pull Myr Battlesphere from the graveyard, bringing along a fresh batch of Myr tokens every single time it enters the battlefield. Black Carriage provides the crucial upkeep-activated untap mechanism that lets you loop the whole process endlessly by sacrificing the Battlesphere right back to the yard. While Black Carriage's trample and Myr Battlesphere's attack trigger are largely passengers here, the sheer synergy of these activated abilities turns your creatures into an endless army of entry and death triggers.