Whisper, Blood Liturgist, Thornbite Staff, Sifter of Skulls, and Blood Artist

Prerequisites

• Whisper, Blood Liturgist on the battlefield
• Thornbite Staff on the battlefield
• Sifter of Skulls on the battlefield
• Blood Artist on the battlefield
• Thornbite Staff attached to Whisper
• Whisper does not have summoning sickness
• You control at least two other nontoken creatures
• You have a creature card in your graveyard

Steps

1. Activate Whisper by tapping it and sacrificing two other nontoken creatures
2. Sifter of Skulls, Blood Artist and Whisper each trigger twice
3. Resolve both Sifter of Skulls triggers, creating two 1/1 Eldrazi Scion creature tokens
4. Resolve both Blood Artist triggers, causing target player to lose 2 life and you to gain two life
5. Resolve both Whisper triggers, untapping it
6. Resolve the Whisper ability from step 1, returning target creature card from your graveyard to the battlefield
7. Activate Whisper by tapping it and sacrificing an Eldrazi Scion token and any other nontoken creature
8. Sifter of Skulls triggers once, while Blood Artist and Whisper each trigger twice
9. Resolve the Sifter of Skulls trigger, creating a 1/1 Eldrazi Scion creature token
10. Repeat from step 4

Results

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