The reason is just that you have control over the domain and to make it globally unique . You could use your public domain internally , but that ' s not the greatest idea because it ' s only going to produce a splitbrain DNS situation . So you use a subdomain of your domain that you don ' t use externally , for example internal . firstlast . ca or ad . firstlast . ca . You can keep your webhosting and registrarDNS provider . Doesn ' t affect your internal things at all . <| sep |> You have no idea what you ' re talking about , do you ? <| sep |> Basically card reacts to something . It can gain STR when something happens , or for example return to your hand when you lose Ciri etc . <| sep |> just go down you tough sob <| sep |> Round up the usual suspects .