Yes it can. And keep Sacred Fire, it's awesome (ie, don't use Fire Blast instead). Also, get rid of the HM moves - Surf is the only HM move worth using in battle, especially since the likes of Return outclass Strength; Fly, Flash, and Cut are crap also, Whirlpool as well, and Waterfall is a weaker Surf basically. Oh, and Fly is horrible, but Ho-oh can't get any decent Flying attacks unless you get lucky with Hidden Power. Two-turn moves are also not very good.
Oh, and Sudowoodo cannot use Special Attacks. Stick to physical, it's Special Attack is too low.
Apart from that, I know nothing.