Whisper, Blood Liturgist, Thornbite Staff, and Sling-Gang Lieutenant

Prerequisites

• Whisper, Blood Liturgist on the battlefield
• Thornbite Staff on the battlefield
• Sling-Gang Lieutenant on the battlefield
• Thornbite Staff attached to Whisper, Blood Liturgist
• Whisper, Blood Liturgist does not have summoning sickness
• You control two additional creatures

Steps

1. Activate Sling-Gang Lieutenant by sacrificing itself
2. Whisper's ability from Thornbite Staff triggers, untapping Whisper
3. Resolve Sling-Gang Lieutenant's ability, causing target player to lose 1 life and you to gain 1 life
4. Activate Whisper's own ability by tapping it and sacrificing two other creatures
5. Whisper's ability from Thornbite Staff triggers twice, untapping Whisper twice
6. Resolve Whisper's ability, returning Sling-Gang Lieutenant from your graveyard to the battlefield
7. When Sling-Gang Lieutenant enters the battlefield, it triggers itself, creating two 1/1 Goblin creature tokens
8. Repeat

Results

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