The Red Terror + Animation Module + Phyrexian Altar + Shocking Sharpshooter

The Red Terror

Animation Module

Phyrexian Altar

Shocking Sharpshooter

How it works

1. Cause a creature to enter the battlefield under your control.
2. Shocking Sharpshooter triggers, dealing 1 damage to an opponent.
3. The Red Terror triggers, putting a +1/+1 counter on itself.
4. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
5. When the Servo enters, Shocking Sharpshooter triggers.
6. Holding priority, activate Phyrexian Altar by sacrificing the Servo, adding 1.
7. Resolve the Shocking Sharpshooter triggers, dealing 1 damage to an opponent.
8. Repeat from step 3.