For scizor, replace with bug bite or roost with baton pass. For gliscore, replace protect with u-turn. For gyarados, get one with moxie, Jolly nature, 252 spd, 252 sdef. Holding the salac berry (or whatever berry that raises speed when hp is below 25%) with waterfall, earthquake, ice fang, and dragon tail. Or if you still want to roll with intimidate, you can do dragon dance, waterfall, earthquake, and ice fang and make it hold a focus sash.