The Red Terror + Animation Module + Witty Roastmaster + Phyrexian Altar

The Red Terror

Animation Module

Witty Roastmaster

Phyrexian Altar

How it works

1. Cause a creature to enter the battlefield under your control.
2. Witty Roastmaster triggers, dealing 1 damage to each 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, Witty Roastmaster triggers.
6. Holding priority, activate Phyrexian Altar by sacrificing the Servo, adding 1.
7. Resolve the Witty Roastmaster triggers, dealing 1 damage to each opponent.
8. Repeat from step 3.