Itachi Eternal Mangekyou Sharingan Shisui Imagine if itachi wasn t sick faked his death in an illusion to sasuke making sasuke have ms ripped out sasuke s eyes and then traded eyes so they both get ems

Itachi has activated his when shisui died and shisui as we all know the sharingan is a pair dojutsu and so one would need 2 mangekyou s together in order to awaken eternal in both their eyes