Berta, Wise Extrapolator + Animation Module + Shilgengar, Sire of Famine + Blade of the Bloodchief

Berta, Wise Extrapolator

Animation Module

Shilgengar, Sire of Famine

Blade of the Bloodchief

How it works

1. Activate Shilgengar by sacrificing another creature.
2. When the creature dies, Blade of the Bloodchief triggers, putting a +1/+1 counter on Berta.
3. Berta and Animation Module trigger.
4. Resolve the Berta trigger, adding 1.
5. Resolve the Animation Module trigger, causing you to pay 1 to create a 1/1 Servo artifact creature token.
6. Resolve the Shilgengar ability.
7. Repeat

This engine leverages the synergy between counter generation and creature recycling to build an infinite loop of sacrifices and artifact creation. By using Shilgengar, Sire of Famine to sacrifice creatures for Blood tokens, you trigger Blade of the Bloodchief to continually pump Berta, Wise Extrapolator with +1/+1 counters. Berta's counter-placement ability supplies the mana needed to fuel Animation Module's triggered ability, which creates a Servo token every time a counter is added, feeding right back into Shilgengar's sacrificial altar.