Granted. You are expected to defeat his afro in a battle after defeating his original team. The afro resists every single type except for Normal and Rock. The resistance works as a quad resistance.
It also turns out the thing is actually catchable, but only on the first fight. You will lose all your balls before fighting it... only to know that you get them back only after you lose against it, and then the hair ball cannot be caught anymore, taunting you.
I wish every single mon ever learnt Ice fang by level up at an early level.