Artificial Evolution, Bishop of Wings, Floating Shield, and Last Laugh

Prerequisites

• Artificial Evolution in hand
• Bishop of Wings on the battlefield
• Floating Shield on the battlefield
• Last Laugh on the battlefield
• Floating Shield attached to Bishop of Wings
• "Black" chosen with Floating Shield
• You control at least one Spirit with toughness equal to 1, and a way to deal damage to that creature
• available

Steps

1. Cast Artificial Evolution by paying , changing all instances of "Angel" on Bishop of Wings to "Spirit"
2. Deal damage to a Spirit you control with toughness equal to 1
3. The creature dies as a state-based action due to having 0 toughness, triggering Bishop of Wings' second ability and Last Laugh
4. Resolve the Bishop of Wings trigger, causing you to create a 1/1 Spirit creature token
5. When the Spirit enters the battlefield, Bishop of Wings' first ability triggers , causing you to gain 4 life
6. Resolve the Last Laugh trigger, dealing 1 damage to each creature except Bishop of WIngs, as well as each player
7. Repeat from step 3

Results

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