Myojin of Night's Reach and Grim Betrayal (UNK-RB08) - Unknown Event

Myojin of Night's Reach and Grim Betrayal enters the battlefield with an indestructible counter on it if you cast it from your hand.
Remove an indestructible counter from Myojin of Night's Reach Grim Betrayal: Each opponent discards their hand. Put onto the battlefield under your control all creature cards in all graveyards that were put there from anywhere this turn.