well if you had made a botd with a duped rune, it would nessacarily poof all at once, ive seen cases of people having these kinda botd's, vex hel el eld --- eth, and you still have your botd untill you leave the game then it poofs

how to perm a duped rune, i heard you do this by trade screen, as soon as it comes up place rune in and exit the game as fast as possible, that ive heard is only a temp. perm but still a perm non-theless