Marowak with Thick Club will do , it can land KOs with its Bonemerang , just the problem with it is it is slow , you need a thunderwave user like Raichu to aid his Wannabe speed , also , Gyarados with Dragon dance is awesome , Earthquake and Thrash are good for it . oh yeah , Hydro pump is good as it is Gyara's Powerful STAB move .
a Charizard with Flamethrower , Dragon Claw , Fly , Overheat is good for a standard sweeper Charizard