Eternal Mangekyo Sharingan

The Eternal Mangekyo Sharingan is the second strongest dojutsu kekkei genkai of the Uchiha clan, being a more powerful variant of the Mangekyo Sharingan. this dojutsu can only be awakened by a user of the standard Mangekyo Sharingan transplanting the eyes of a relative who has also awakened that dojutsu. At such a point, the Eternal Mangekyo Sharingan awakens with the appearence of being a mixture of the user and the relative whose eyes he transplanted's Mangekyo. Just like the standard one and the Sharingan, it has a red iris. An automatic effect of awakening these eyes is that the user's vision is fully and forever restored from the damage done to it by awakening and using the Mangekyo Sharingan. It also allows the user to sue all their Mangekyo jutsu even more powerfully and with less strain on their eyes and cost to their chakra reserves. Only Madara Uchiha and Sasuke Uchiha have awakened this dojutsu. One notable effect is that their Susano'o jutsu took on a different appearance. Madara used his Eternal Mangekyo Sharingan to fully control Kurama while battling Hashirama Senju.