Last Voyage of the _____ enters the battlefield, returning Worldgorger Dragon from your graveyard to the battlefield and attaching Last Voyage of the _____ to it.
Worldgorger Dragon triggers.
Resolve Worldgorger Dragon's ability, exiling all other permanents you control.
Last Voyage of the _____'s last ability triggers, sacrificing Worldgorger Dragon.
Worldgorger Dragon leaves the battlefield, returning all permanents exiled by it to the battlefield.