Whisper, Blood Liturgist + Body Double + Thousand-Year Elixir + Xathrid Necromancer

Whisper, Blood Liturgist

Body Double

Thousand-Year Elixir

Xathrid Necromancer

How it works

1. Activate Whisper by tapping it, sacrificing itself and any other creature you control, targeting Body Double.
2. Xathrid Necromancer triggers, creating at least one 2/2 Zombie creature token.
3. Resolve the Whisper ability, returning Body Double from your graveyard to the battlefield as a copy of Whisper.
4. Activate Body Double by tapping it, sacrificing itself and the Zombie token, targeting Whisper.
5. Xathrid Necromancer triggers, creating a 2/2 Zombie creature token.
6. Resolve the Body Double ability, returning Whisper from your graveyard to the battlefield.
7. Repeat.