black could even sacrifice his bishop against the pawn c6. Provided that his king will reach the corner h8 in time, this is still a draw (h8 is the wrong corner for the white bishop + pawn to coronate).
EVEN IF HE COULD (he can't), he would just sacrifice his bishop against Pawn c6. Then, I already pointed out that he still can't win because the square h8 is the wrong corner for the white bishop.
White to move
Is it possible for white to mate black with his bishop or king? Or is it now a draw?