Board Thread:Theories and Speculation/@comment-28323245-20170530200422

One thing I just though about.

Could Obito have awaken his mangekyo when he was crushed by the bolder, but because he was in a near death situation, not aware of it, and only later reawaken it when he saw Rin die?

Like similar to Sasuke's sharigan from the Massacre, but only reawaken it later in Wave. 