I would bring a poison sword, that is absolutely covered in the stuff, so I can kill monsters instantly.

A food Maker, that makes any food I think of, so I will never be hungry.

A drinks Machine, that makes every drink I think of so I will never be thirsty.

Magical clothes, that are always clean, so I can smell nice.

A diary, that does everything I write in it, so I can defeat monsters

A pet lion, that is ready for battle, so I can win every duel.

A parrodrgon, which everyone mistakes for a parrot, so I can spy on enemies.

 An army maker, that has 1000,000 soldiers, so all a battle are unfair.