Blood Artist, Pawn of Ulamog, Thornbite Staff, and Whisper, Blood Liturgist

Prerequisites

• Blood Artist on the battlefield
• Pawn of Ulamog on the battlefield
• Thornbite Staff on the battlefield
• Whisper, Blood Liturgist 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. Pawn of Ulamog, Blood Artist and Whisper each trigger twice
3. Resolve both Pawn of Ulamog triggers, creating two 0/1 Eldrazi Spawn 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 Spawn token and any other nontoken creature
8. Pawn of Ulamog triggers once, while Blood Artist and Whisper each trigger twice
9. Resolve the Pawn of Ulamog trigger, creating a 0/1 Eldrazi Spawn creature token
10. Repeat from step 4

Results

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