Berta, Wise Extrapolator, Clockspinning, and Font of Magic

Prerequisites

• Berta, Wise Extrapolator on the battlefield
• Clockspinning on the battlefield
• Font of Magic on the battlefield
• available

Steps

1. Cast Clockspinning with buyback by paying due to Font of Magic, putting a +1/+1 counter on Berta and returning Clockspinning to your hand
2. Berta triggers, adding
3. Repeat

Results

• Infinite +1/+1 counters on a creature
• Infinite magecraft triggers
• Infinite storm count