Twilight Stalker

When Helios rises exile Twilight Stalker and any creatures damaged by Twilight Stalker this turn.
When Luna rises, if Twilight Stalker is in exile, return it to the battlefield under it's owners control.
The screams from the night watchman echoed through the camp. None dared leave the safety of their tent to help him. We all looked for him when the sun rose, but we knew we would find no trace.
-Solider's Journal