Makes my Rock and Fire Weak only biger and its stats are weaker than Abomasnow. I need to get rid of my rock weak people please!
if something tricks black sludge they'll trick it back to something else therefor screwing you over entirely.One small tidbit, give tentacruel black sludge instead of leftovers in case of trick or something, i know its kind of rare but still doesnt take much to change it.
For you rock and fire weakness i would suggest a defensive hariyama maybe with thunder punch over ice punch since it seems you got that covered.