Your clone may find a way to kill you :P. Ironic as it sounds but consider she is you so your phylactery immunity would not help.<br/><br/>Or I simply rule that your clone only needs touch you to merge with you and so enter mental duel where immunities would not matter; the loser would then become remaining entity.<br/><br/>What comes to custom acorn; I do allow it but note you cannot put it to extra dimensional bag or hide anywhere other dimension or such. You need hold it on by skin contact the item to work on you.<br/><br/>Limit on Simalcrum is that once you create clone, it is treated to have 'spend' the simalcrum spell-alike ability already. So clone cannot create clone. If you know it as spell though which is memorisized more than once then clone can cast it until it has run out of spell slots to cast it.<br/><br/>Note; Kunoichi, your avatar pic is not safe for work :P. Altough pretty nice teaser for christmas ;).