Bladewing the Risen, Terror of the Peaks, and Changeling Berserker

Prerequisites

• Bladewing the Risen on the battlefield
• Terror of the Peaks on the battlefield
• Changeling Berserker in hand
• You have enough mana to cast Changeling Berserker

Steps

1. Cast Changeling Berserker by paying
2. When Changeling Berserker enters the battlefield, it and Terror of the Peaks trigger
3. Resolve the Changeling Berserker trigger, exiling Bladewing until Changeling Berserker leaves the battlefield
4. Resolve the Terror of the Peaks trigger, dealing damage to Changeling Berserker equal to Changeling Berserker's power
5. Changeling Berserker dies as a state-based action due to having 0 or less toughness
6. When Changeling Berserker dies, it triggers, returning Bladewing from exile to the battlefield
7. When Bladewing enters the battlefield, it and Terror of the Peaks trigger
8. Resolve the Terror of the Peaks trigger, dealing damage equal to Bladewing's power to any target
9. Resolve the Bladewing trigger, returning Changeling Berserker from your graveyard to the battlefield
10. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers
• Infinite damage