Last Laugh, Bishop of Wings, Xenograft, and Floating Shield

Prerequisites

• Last Laugh on the battlefield
• Bishop of Wings on the battlefield
• Xenograft on the battlefield
• Floating Shield on the battlefield
• Floating Shield attached to Bishop of Wings
• "Black" chosen with Floating Shield
• "Angel" chosen with Xenograft
• You control an additional creature with toughness equal to one
• You have a way to deal damage to the creature
• Your life total is at least 2

Steps

1. Deal damage to a creature you control with toughness equal to one
2. The creature dies as a state-based action due to having zero toughness
3. The creature dies as an Angel due to Xenograft, triggering Bishop of Wings' second ability, causing you to create a 1/1 Spirit creature token
4. The Spirit enters the battlefield, as an Angel due to Xenograft, triggering Bishop of Wings' first ability, causing you to gain four life
5. Last Laugh triggers, dealing 1 damage to each creature except Bishop of WIngs, as well as each player
6. The Spirit dies as a state-based action due to having zero toughness
7. Repeat from step 3

Results

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