[@Ambra] Aye, sorry, was in the middle of a tournament and looking at this between the matches. Didn't read the last part very well where you mentioned wands as examples in general.

So on to the next question. Can my tome have a special effect? When my MC uses an incantation the tome momentarily merges with the mage and transforms him into a beast, creature, another human disguise? Shape shifting tome. And the amount of time the user can hold that form depends on their fortitude. If they can't control the power anymore they permanently stay transformed as the creature they currently are and the tome vanishes.