Sun Titan + Shilgengar, Sire of Famine + Shade's Form

Sun Titan

Shilgengar, Sire of Famine

Shade's Form

How it works

1. Activate Shilgengar by sacrificing Sun Titan.
2. When Sun Titan dies, Shade's Form triggers, returning Sun Titan from your graveyard to the battlefield.
3. When Sun Titan enters, it triggers, returning Shade's Form from your graveyard to the battlefield attached to Sun Titan.
4. Resolve the Shilgengar ability.
5. Repeat.