In Naruto, these patterns are found in Sharingan, Rinne Sharingan, and Rinnegan. Although the Sharingan user has access to all of its abilities since its awakening, each Tomoe of a Sharingan primarily enhances its potency. Tomoe and the Sharingan's various stagesSasuke's Rinne-Sharingan as seen in Naruto anime (Image via Studio Pierrot)The Tomoe indicates the Sharingan's stage of development in Naruto. Tomoe and non-Uchiha Sharingan usersKakashi's Sharingan (Image via Studio Pierrot)A person who does not belong to the Uchiha clan can obtain a Sharingan by receiving a transplant from an Uchiha. Thus, the Tomoe is an indicator of the kind of power that a Sharingan user might wield, irrespective of whether they are Uchiha.
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