Arcbound Crusher + Animation Module + Phyrexian Altar

Arcbound Crusher

Animation Module

Phyrexian Altar

How it works

1. Cause an artifact to enter the battlefield under your control.
2. Arcbound Crusher triggers, putting a +1/+1 counter on itself.
3. Animation Module triggers, causing you to pay 1 to create a 1/1 Servo artifact creature token.
4. When the Servo enters the battlefield, Arcbound Crusher triggers.
5. Holding priority, activate Phyrexian Altar by sacrificing the Servo, adding 1.
6. Resolve the Arcbound Crusher trigger, putting a +1/+1 counter on it.
7. Repeat from step 3.
8. If desired, you may then sacrifice Arcbound Crusher to Phyrexian Altar to put its +1/+1 counters on any artifact creature you control.