Board Thread:Theories and Speculation/@comment-30323490-20170305205254/@comment-30355627-20170309212921

Thekillman wrote: BakumatsuWarrior wrote: atrociously broken Mangekyo Sharingan The MS isn't all that bad and can be countered by various relatively cheap techniques. Earth Release counters Amaterasu pretty hard, Shadowclone counters Tsukuyome.

Obito could spam it because of his Hashi cells, but hashi cells make everything OP. If Obito was a regular uchiha, he may be able to phase or teleport maybe twice per fight (per eye) without sever repercussions (similar to Sasuke and Itachi's use). Sharingan user can detect witch is the real one with his eyes.