Iron Spider, Stark Upgrade + Voltaic Construct + Crystalline Crawler + Workhorse

Prerequisites

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Steps

1. 1Activate Iron Spider by tapping it, putting a +1/+1 counter on each artifact creature and/or Vehicle you control.
2. 2Activate Workhorse and Crystalline Crawler by removing a +1/+1 counter from each of them, adding .
3. 3Activate Voltaic Construct by paying , untapping Iron Spider.
4. 4Repeat.

Effects

• Infinite +1/+1 counters on all Vehicles you control
• Infinite +1/+1 counters on certain creatures