Yotian Dissident, Lesser Masticore, and Altar of Dementia

Prerequisites

• Yotian Dissident on the battlefield
• Lesser Masticore on the battlefield
• Altar of Dementia on the battlefield
• Lesser Masticore does not have a -1/-1 counter on it

Steps

1. Activate Altar of Dementia by sacrificing Lesser Masticore
2. Lesser Masticore dies, triggering its persist ability, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. Lesser Masticore enters the battlefield, triggering Yotian Dissident, putting a +1/+1 counter on Lesser Masticore
4. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Lesser Masticore's power
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill