Berta, Wise Extrapolator, Clockspinning, and Sami, Wildcat Captain

Prerequisites

• Berta, Wise Extrapolator on the battlefield
• Clockspinning on the battlefield
• Sami, Wildcat Captain on the battlefield
• available

Steps

1. Cast Clockspinning with buyback by paying due to Sami, 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 storm count
• Infinite magecraft triggers