Sling-Gang Lieutenant, Maskwood Nexus, and Xathrid Necromancer

Prerequisites

• Sling-Gang Lieutenant on the battlefield
• Maskwood Nexus on the battlefield
• Xathrid Necromancer on the battlefield
• You control at least one additional creature

Steps

1. Activate Sling-Gang Lieutenant by sacrificing a creature, which is a Goblin due to Maskwood Nexus
2. The creature dies as a Human due to Maskwood Nexus, triggering Xathrid Necromancer, creating a 2/2 Zombie creature token
3. Repeat an arbitrarily large number of times
4. Resolve all Sling-Gang Lieutenant abilities, causing any number of target player(s) to lose infinite life and you to gain infinite life

Results

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