Narset has got the 'tism, I'd assume Nahiri is the one that's a bit batshit in the head from what I recall.
That's right. Narset had that whole fucking story which boiled down to "I'm David Sherrat levels of Autism."
Nahiri they're just doing it because her depiction in Stoneforge Mystic turned people on and they went with the manic pixie girl trope.
Ever notice how Gideon became more and more Mediterranean looking over the years? Dude was pretty much white at one point. Funny, turn him into a POC only to kill him off.
The Gideon stuff really irritates me. Ever since he broke on the scene it was really obvious that he was Roman-inspired. He was supposed to be the gladiator, the strong muscle that the spellcasters could hide behind. I think his early art really shows this off well:
As you can see, he has strong Roman features, square jaw, light skin and an aquline nose. The nose, in particular, is really the key to his evolution, as we'll see.
His first planeswalker card also shows off these features.
This is the art from his first planeswalker card. He looks full blown Roman in this. Even not looking at his obviously Roman inspired gear, note the nose, large and thin. Furthermore, check the brow and forehead. Dude looks like Julius Ceasar came back from the dead to wipe out more Gauls.
Finally, we get another piece of art that shows his original form:
Still consistent with the above two.
Now here's the thing, all 3 of those pictures were drawn during the Return to Ravnica block, We're talking around 2012-2014. MTG had a huge shift in thinking that became very visible directly after this block. But without poisoning the well too much, I'll just show you what Gideon is drawn like now:
The nose is flatter, the skin is significantly darker and the jaw is less square and the lips are thicker. This is no true Roman.
Speaking of pouty lips:
And they also drew him like a slender Jason Mamoa at some point:
Because we all know that tough, strong men aren't allowed in our MTG safe spaces. We need to make sure that all men are effeminate in some way.
Lastly, I'll leave with one final card. It depicts a young Gideon when he was living on Theros. He's the one in the middle. I'm not kidding. Look at his original art and then look at this and tell me that there wasn't an officicial memo sent out telling everyone to make him look more ethnic:
TL: DR - Gideon was retconned from being a Roman inspired gladiator to being half Turkish and Half Black.