Xantcha, Sleeper Agent, Mind Over Matter, and Basalt Monolith

Prerequisites

• Xantcha, Sleeper Agent on the battlefield
• Mind Over Matter on the battlefield
• Basalt Monolith on the battlefield
• Xantcha on the battlefield under an opponent's control

Steps

1. Activate Basalt Monolith's first ability by tapping it, adding
2. Activate Xantcha by paying , causing its controller to lose 2 life and you to draw a card
3. Activate Mind over Matter by discarding a card, untapping Basalt Monolith
4. Repeat

Results

• Infinite draw triggers
• Infinite lifeloss for target opponent
• Infinite looting
• Infinite self-discard triggers