Last Laugh + Bishop of Wings + Conspiracy + Floating Shield

Last Laugh

Bishop of Wings

Conspiracy

Floating Shield

How it works

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 Conspiracy, 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 Conspiracy, 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.