If you know how to block testaments attacks and combos, he not as hard as others with baiken. Only reason I can see jam being a hard match up is because of the speed of her combos.
And as for SH_ post. (if i misunderstand anything you said i apologize to baby kitten)
To say that everyone who started out with baiken spammed counters, is BS. Just from simply playing other games, you can tell the counters are situational and that it can be baited over time. It all depends on who you are, simple as that.
I think its better to ignore what most people say about a character, and actually just learn own your on, how to play that character. If you have the desire to improve you will come out better then anyone who just reads blah blah blah on a character, rather then the hrs of practicing , fighting against those actually match ups in person. (reading about /and/ fighting the match ups in person from someone who knows the character all out is 2 completely different things).
Reading a matchup about how to fight testament < fighting a Pro Testament player (mr 3000, Fraley and this one dude I believe is from Planet Zero). Same goes for all the cast. You cant comprehend the scale of the match up if you never play against them.
That all being said idk what you think, this IMO.Time to watch more one piece fillers.