Agatha's Soul Cauldron, Kragma Butcher, and Tidewater Minion

Prerequisites

• Agatha's Soul Cauldron on the battlefield
• Kragma Butcher on the battlefield
• Tidewater Minion in exile

Steps

1. Activate Kragma Butcher using Tidewater Minion's ability by tapping it, untapping Kragma Butcher Kragma Butcher triggers, giving it +2/+0 until end of turn
2. Repeat

Results

• Infinitely powerful creature until end of turn