-Besides the advices youve already gotten against shotos… Id just like to say that although uriens good pokes against the shotos, st.fwd and st.strong, keeps them away from you i wouldnt focus on them that much. Indeed they are good pokes but once…lets say ken, gets meter they are at the same time really risky to use as ken easilly punishes these pokes. A blocked st.fwd is very safe but you will only find it useful on maxrange. A distance ken never will keep when fighting urien. What you do want to do is to charge meter as much as possible and let the shotos run the show. This is, during the time ive played urien against shotos, the best thing to do. A rushing shoto will add a lot of dashing and throws into his game, and thats where you do your jab headbutt. You must learn to see the throwsetups and the dashes.
-Against necro j.rh and st.fierce works wonders. Also, you can groundxup him meaning a dash(through) > jab headbutt or a cr.lk before the headbutt is really a useful combo should necro just once quickrise. Necro is indeed annoying for urien but has a lot of problems once knocked down, just like urien.
-Always do as much damage as possible against the twins meaning that you should do cr.fierce > ex headbutt > tackle if there is no place for a “good” aegissetup. This not only does good damage but you push them towards the corner too.
And yes, indeed it is really hard against yun but keep in mind that you do a lot of damage against him.
cr.forward and st.fierce are good pokes that do good damage. Walk towards yun and push him back to the corner. Try to keep him there as much as possible. Yun will eventually jump so from there you have the advantage.
I see too many ppl throwing spheres against yuns these days. I wouldnt bother tbh. No yun will fall for that unless they are really sleapy
-Noone can tell you when you should and shouldnt use the reflector but common knowledge is that, if you are at the right range, the f+fp is really hard to predict. So i guess you need to learn more about spacing with his f+fp. Learn the maxrange on that move and i promise that you will gain A LOT more than one thinks.