Tidal Control, and Mindslaver

Prerequisites

• Tidal Control on the battlefield
• Mindslaver on the battlefield
• You have a red or green spell in hand that can be cast during an opponent's turn, along with the mana to cast it during that turn
• available

Steps

1. Activate Mindslaver by paying and tapping it, causing you to gain control of target opponent during their next turn
2. During the opponent's turn, cast a red or green spell from your hand by paying its mana cost
3. As the opponent, activate Tidal Control by paying 2 life, targeting the red or green spell
4. Repeat step 3 until the opponent has 1 or less life remaining

Results

• Near-infinite lifeloss for target opponent