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Ok I need help on deciding which pet to buy and if they fight with me and I also want to know if I buy a Pet will that stay with all my characters or only the one I bought it with?
Pets bought with crowns are account wide so you can have them on all your characters. They are purely cosmetic though so will just stand and watch when you fight. Sorcerers can summon deadric pets that will fight for you, but these are the only combat pets in game.