If you could use the Zen form right off the bat, with the regular form ability Sheer Force, that would be incredible. Bulky, massive special attack and decent STABs that benefit from your ability. Throw on a Life Orb for massive death. Trick Room for extra fun times.I wish Zen Mode Darmanitan could be "unlocked" in a better way, or at least be its own independent form. By itself, it is an interesting pokemon competitively and aesetically. Did you know it has the highest SpA stat of all Psychic-types outside of mega-evo's and legendaries? A super-bulky, super powerful fire-type could have been really interesting. Outside of typing and speed, all its stats are better than heatran's.
Anyway, what's the point of using it when a. You have to be halfway to kill yourself to use it AND b. You have a legitimately usable, extremely powerful regular forme? There is never a real opportunity to use it :(
Why shouldn't he?Actually, why does Slaking GET Protect?
Regigigas lacks it so that you can't stall out Slow Start by using Protect. But Protect is useless on Slaking, it just means that he accomplishes even less than usual.