Sandstorm Prowler

As long as you control a Desert, Sandstorm Prowler has: {w},{t}: Exile Sandstorm Prowler. Return it to the battlefield under its owner's control at the beginning of the next end step.
As long as there is a Desert card in your graveyard, Sandstorm Prowler has haste.
It vanished into the dust as quickly as it had appeared, leaving them wondering if it had ever been there.