Okay, so design wise, this was always a cat I dreaded drawing. I mean, come on, what's with Tygra's design?! Who let him walk off the cutting room floor with that hair? I get that tigers don't have 'manes' the like Lions do, but really? I never even attempted drawing him as a child because of just how hard it looked.
Although, to be honest, Tygra was never my favorite, so that might've also been a factor. Which is funny, cause I heard a lot of fans actually liked Tygra back in the 1985 series. I can't speak for all of them, but I think they just like the fact that Tygra, surprisingly, is more of a damsel in distress than the original two Thundercat ladies. This guy is practically Mr. Fanservice and he's the only guy fully clothed-save for his shoes. As a kid, though, I didn't see it. As an adult? I...kind of like him, but I feel the writers didn't know what to do with him half the time.
Let's get the nitpick out of the way; why can't he normally swim? He can only swim with his whip turning him invisible and I just can't get why. Maybe it's a placebo thing, like he feels he can't do it without it? I feel that could make a neat episode if they ever got around to explaining it, but I guess since the main audience of kids, we were just suppose to not think about it. "Oh, he's a cat, of course he can't swim". Except, you know, Tigers are one of the few cats without a natural aversion to water-in fact, most Tigers are proficient at swimming since they hunt in jungles with lots of water. So, no Thundercats, Tygra is the one cat who SHOULDN'T have a swimming weakness-if anything, it should kinda be his gimmick.
Now for the big problem with Tygra: his role, both from a narrative standpoint and in-universe. In the show, he's a scientist and archaeologist, with seemingly a specialty in chemistry. And that chemistry degree rarely comes in handy in the 30-ish episodes I've lost. It's so odd too, cause you think more-or-less being the Team Alchemist would give him the most to do in forms of story telling. If anything, he should have a utility belt of different potions and substances, but that's more of Panthro's thing. Okay, what about explosive capsules? No, that's the Wilykitten's thing. I mean, he's got his whip and invisibility...and that's it, really-for the most part.
Narrative, he's the Lancer. When Lion-O's away, he's usually put in charge of the Thundercats and he has a lot of moments with Lion-O. These two are almost a perfect duo, in a way. Lion-O's young and hotblooded, Tygra's older and more experienced. In "The Fireballs of Plun-Dar", when he gets captured, Lion-O doesn't hesitate for a second to go running to him, even forgetting his Claw Shield. In "Feliner - Part Two", when Lion-O is sad Snarf is going to leave(he doesn't, sadly), it's Tygra who consoles him for a brief moment.
See? There's enough shipping material between these two without the creepy step-brother context.
Jokes aside, let's get to that last ability of his before I make my peace with 2011 and Roar's interpretation; his 'Illusion Powers'. It comes out of nowhere for Lion-O's trials later on down the road, under the context that 'well, I've been saving it for just this moment'. It's kinda dumb, but I like to think of it like this; Tygra is a Psychic and he uses his whip as a focus for his powers, hence why he wraps it around himself and why he needs it for his invisibility. It doesn't explain why he can't swim, but I like this theory-I didn't come up with it myself, but I fully support it. And projecting the trials is a feat that's usually done with multiple Master Illusionists, hence why Tygra uses the powers sparingly and only does Invisibility since it's a low-level Psychic power and it doesn't use up too much of those 'Master Illusion Points' that he knows he'll need for the eventual trial for Lion-O. That's the power of hindsight.
Now for 2011 Tygra...I don't like it. I get what the writers were going for, to really buckle down on that brotherly angle the OG series was going for, but it really kind of falls flat to me. But maybe that's because I'm a younger brother and I had to deal with an asshole brother exactly like Tygra was in the reboot. It's nice to see his and Lion-O's relationship prosper and improve over time, but he's pretty insufferable most of the time. Like, half the time, I just want him to put a sock in it and I really didn't feel Tygra and Cheetara's romance was well handled. Now, in terms of the OG series and the Wildfire comics they got, the ship totally makes sense. But since we follow Lion-O's perspective and we rarely see Tygra and Cheetara interact, it just kind of came off as 'shock' and a blow to Lion-O for almost no reason-and the less we talk about 2011 Pumyra, the better.
And as for Roar...I mean, I guess I get that Tygra didn't have a lot of personality outside of being noble and wise, so of course they gotta make him the Robin-I mean the nag. Someone, I guess has to be the Butt Monkey.
I gotta feel bad for Tygra; a dozen different science degrees and no respect from the writers outside of the OG series.
But at least he has a kickass theme song.