Did not draw card with Sea-Dasher Octopus mutated on a morph
I attacked with a morph creature. The creature was unblocked. Prior to the damage step, I flashed in Sea-Dasher Octopus for its mutate cost. I attached the octopus to the morph and placed it under. The text of the octopus was written on the morph (Whenever this creature deals combat damage to a player, draw a card.) Damage was then dealt but I did not draw a card.