Bladewing the Risen, Changeling Berserker, and Phyrexian Altar

Prerequisites

• Bladewing the Risen in hand or in the command zone
• Changeling Berserker in the graveyard
• Phyrexian Altar 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 Phyrexian Altar by sacrificing Changeling Berserker, adding one mana of any color
5. Changeling Berserker leaves the battlefield, returning Bladewing from exile to the battlefield
6. Repeat from step 2

Results

• Infinite colored mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers