If person, who would it be, what would be the reason for bringing them to your life and why you chose said person.
If thing, it could be an item, a set of armor, or hell even a mutated monster or whatever. So explain why you chose what you chose.
I would bring Sif, that's assuming it wouldn't kill me lol but it would make an awesome companion. --- "Invading world of the guilty as spirit of vengeance...The guilty pay the price, returning with Souvenir of Reprisal". I survived 2012