Can I REALLY beat The Pokemon League with this team? best answer 10 point! really can I?

Infernape (FlameMonkey) lvl: 73, moves: Flame Wheel, Secret Power, Ember and Scratch. Staraptor (Birdy) lvl: 46, moves:Fly, Peck, Iron Wing and Wing Attack. Haunter (Gaspar) lvl:51, moves: Sucker Punch, Pay Back, Shadow Ball and Shadow Punch. Palkia (Pearl) lvl: 55, moves: Water Pulse, Spacial Rend, Ancient Power and Dragon Claw. Roserade (Rose) level:48 moves: Poison Sting, Magical Leaf, Mega Drain and Leech Seed and last but, not least Steelix (IronWorm) lvl: 47 and moves: Earth Quake, Bite, Iron Tale and Dragon Breath. I hope some Pros. who have beaten The Pokemon League (In one day) can judge me and tell me what it takes.