Priest of Fell Rites, Activated Sleeper, Righteous Valkyrie, Maskwood Nexus, and Lightning Greaves

Prerequisites

• Priest of Fell Rites on the battlefield
• Activated Sleeper in the graveyard
• Righteous Valkyrie on the battlefield
• Maskwood Nexus on the battlefield
• Lightning Greaves on the battlefield
• Your life total is at least 50

Steps

1. Activate Lightning Greaves' equip ability by paying , attaching it to Priest of Fell Rites
2. Activate Priest of Fell Rites by paying three life, tapping and sacrificing it, returning Activated Sleeper from your graveyard to the battlefield as a copy of Priest of Fell Rites
3. When Activated Sleeper enters the battlefield, Righteous Valkyrie's first ability triggers, causing you to gain life equal to Activated Sleeper's toughness
4. Activate Lightning Greaves' equip ability by paying , attaching it to Activated Sleeper
5. Activate Activated Sleeper by paying three life, tapping and sacrificing it, returning Priest of Fell Rites from your graveyard to the battlefield
6. When Priest of Fell Rites enters the battlefield, Righteous Valkyrie's first ability triggers, causing you to gain life equal to Priest of Fell Rites' toughness
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite sacrifice triggers