Good but I think he needs a few more moves per stance, since he's outclassed in neutral by characters with the vanilla amount of attacks available to them at any given time.

They've got many cool concepts in their moves, but there are a few notable issues
-Step is worryingly good in combination with their other normals (which includes both frame 1 armor and invulnerability, both of which are too strong except on initiative (which you should make them))
-Duck should have vulnerability before the end (just 3 frames or so) but this could also come with the invulnerability happening earlier (same frame as ninjas backsway)
-Their roll should have more endlag to bring it in-line with standard (4 more frames)
-Almost all of their moves do not hitcancel, which cripples them significantly (the options out of each move when they connect are only instant or burst cancel, which is not normal)
-Ox form stance cancel should preserve your momentum so you can combo off it (I think, more of an opinion)