Does a King's Rock's effect only work for physical moves?

Question

I was wondering because I gave my Dronite one, and the majority of his moves are special so I just wanted to know that.

Answer 1

It works for all moves that cause damage.

>All moves that actively deal damage and do not already have a chance to flinch will gain a 10% chance of flinching the opponent. (This chance doubles to 20% if the holder has Serene Grace.) This effect does not stack with Stench, and is not affected by Sheer Force.

Source

Answer 2

No, King's Rock works for all attacking moves, regardless of special or physical.