Cursetank hits Gengar you wank. Now that's not very nice...
SHADOW BALL.
And most Normal types can be played as Fighters, that's why I used Mil as an example.
Cursetanks set should be: CURSE/RETURN/SHADOW BALL/MILK DRINK
Anything else is not worth using.
If you know the opponent will kill Sheddy you switch out. I think we should just face it, that shedinja is not useable in competive battles. I mean, this gives them a free sub or set up or attack, you know?
And the point of it is to transform Sheddy into a Normal type, giving him one weakness, and it ain't Ghost.Um, which is fighting, which from your earlier point, fighting pokemon screw over. Right?