PokeProf.Ishan

So, I have been trying to defeat Blake for a long time and all of my strata have failed. I decided to not change my team cuz changing team every battle seems kinda disrespectful. Here's my team. I've got pretty low iv Pokemon so maybe that's also a problem. Edit: They are all Lvl 75. Gligar/ Ground, Flying Jolly 252 Attack , 252 Speed Acrobatics U turn Sky Uppercut Swords Dance Houndoom/ Fire, Dark Timid 252 Speed , 252 Special Attack Flamethrower Dark pulse Sucker punch Nasty plot Rotom/ Electric, Ghost Timid 252 Special Attack, 252 Speed Discharge Hex Dark pulse Uproar Empoleon/ Water, Steel Modest 252 Special Attack , 252 HP Drill peck Aqua jet Metal claw Hydro pump Dragalge/ Dragon, Poison Modest 252 Special Attack, 252 HP Dragon Pulse Hydro pump Toxic Sludge wave Medicham/ Psychic, Fighting Jolly 252 Attack , 252 Speed High Jump Kick Zen Headbutt Bullet punch Accupressure Please help.