1(Manifest dread Unstoppable slasher then attack with it face down, have it be blocked then turn it face up. Give the blocking creature indestructible and deathtouch.) 2(I'm playing on Android)3(Unstoppable slasher went to the grave and stayed there. I manifest dread the unstoppable slasher. Next turn I attacked with it face down. They blocked then I flipped the slasher. They gave their creature deathtouch and indestructible. When combat was over. The slasher stayed in the graveyard.)4(I expected the unstoppable slasher to be returned to the battlefield with the stun counters.) I was playing in a draft that I paid real money to be able to play. I can't say how the match would have ended but a threat was taken away by a bug in the system.