| Unh-unh-unh. No spoilers.
Note: This article contains spoilers.
If you saw Endgame, Part 2, then you might notice that Rex has some flashbacks... with some pictures on this wiki! (I gues MoA like us a lot, Ben 10 Wiki's pictures haven't been used sadly, since there are so many). The following pictures are:
Only three were not used, but probably erased. So any opinions? Comment below.
P.S. Did anybody notice a similarity between Rex and Aang in this episode?