I just got a random in mage training arena when I went into the enchantment section, what if I go in there > get one of each item > wait till random > fail random > get ported somewhere random > keep stuff from MTA > have upgradeable items no one else has > ???? > profit.
I haven't tested this, I'm wondering what will happen. The trigger happens to remove it from your invent when you leave the MTA arena but what if you remove VIA a random event?