Bladewing the Risen, Changeling Berserker, and Altar of Dementia

Prerequisites

• Bladewing the Risen in hand or in the command zone
• Changeling Berserker in the graveyard
• Altar of Dementia on the battlefield
• plus enough mana to pay for commander tax, if applicable available

Steps

1. Cast Bladewing either from your hand or from the command zone by paying and commander tax, if applicable
2. Bladewing enters the battlefield, returning Changeling Berserker from your graveyard to the battlefield
3. Changeling Berserker enters the battlefield, championing Bladewing
4. Activate Altar of Dementia by sacrificing Changeling Berserker
5. Changeling Berserker leaves the battlefield, returning Bladewing from exile to the battlefield
6. Repeat from step 2 an arbitrarily large number of times
7. Resolve all Altar of Dementia abilities, causing target player(s) to mill infinite cards

Results

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