Scurry Oak, Intruder Alarm, Steel Overseer, and Mycosynth Lattice

Prerequisites

• Scurry Oak on the battlefield
• Intruder Alarm on the battlefield
• Steel Overseer on the battlefield
• Mycosynth Lattice on the battlefield
• Steel Overseer does not have summoning sickness

Steps

1. Activate Steel Overseer by tapping it, putting +1/+1 counter on each artifact creature you control
2. Scurry Oak triggers, creating a 1/1 Squirrel creature token
3. The Squirrel enters the battlefield, triggering Intruder Alarm, untapping all creatures
4. Repeat from step 2

Results

• Infinite +1/+1 counters
• Infinite creature tokens
• Infinite ETB
• Infinite mana creatures you control can produce
• Infinite untap of all creatures