If we can choose all desired enchant it will be break the game because it is so OP.
Since its really hard to get eg 2x Wolf orb in a row with that chance
Maybe I suggest that, once you get the rare orb (warrior , mage , shooter) on 4th enchant , the 3rd enchant will be auto have 50% chance to get another rare orb (warrior , mage , shooter)
Atleast this gives some hope that might get the perfect enchant