Teshar, Ancestor's Apostle, Myr Retriever, Altar of Dementia, and Mishra's Bauble

Prerequisites

• Teshar, Ancestor's Apostle on the battlefield
• Myr Retriever on the battlefield
• Altar of Dementia on the battlefield
• Mishra's Bauble on the battlefield

Steps

1. Activate Mishra's Bauble by tapping and sacrificing it, looking at the top card of a player's library and drawing a card at the beginning of the next turn's upkeep
2. Activate Altar of Dementia by sacrificing Myr Retriever
3. Myr Retriever triggers, returning Mishra's Bauble from your graveyard to your hand
4. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Myr Retriever's power
5. Cast Mishra's Bauble by paying
6. Teshar triggers, returning Myr Retriever from your graveyard to the battlefield
7. Repeat

Results

• Infinite card draw at the beginning of the next upkeep step
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite storm count