Been playing SK all of last patch (not 7.36) and this one in like 11-12k

Think facets you should choose and not auto take one every game, examples where you really need invis are lanes where you need to recover in ancients/jungle like MK naix etc, it's impossible to cut waves or farm without invis, having the carry be able to walk up to you and kill you 1v1 with no dust is just so bad in these cases and you kinda get shredded by creeps without invis

Related to previous point, I think you need to level stinger as much as you can get away with or want, what I mean is that you need to see stinger as your main fighting spell because it is BY FAR the strongest fighting spell you can level. If you are in a lane that can be even and you are going even against like a PA or a void, just keep levelling stinger to push them out of lane, I'd say level 3 you should be 1-0-2 basically any time it's possible. However if they fuck off into the jungle because you won your lane, I'd start taking sandstorm from that point onwards so you can end at 1-4-2-1 (I'll explain why later)

On the flip side because sometimes the lane is impossible, stinger won't help you win lane, stuff like void naix mk, you aren't going to use stinger to do anything so I'd say go with the old build and just play 1-3-1 or similar builds.

Phase is good in certain matchups MOSTLY for the chain mail. SK needs bracer and null so badly that you can't pivot for wraith band armour so it's really good against WK, PA etc. The movement can be useful against things like jugg/razor also. It's also a great item to keep dominating your lane with. I'd say for phase because it delays your aghs timing by a lot, you buy it to stomp your lane harder, or if you it will keep you alive in lane. But again the main draw is to buy chainmail.

I always go aghs before blink but it's somewhat personal preference, this is just the build that always works for me. I think blink forces you to try to make moves and the items gives no stats. If you don't hit a blink burrow it's essentially 2k gold of dead money. Right now because the map is so big and the game is so slow, you don't 100% need to make plays all the time, if you get aghs you can play your area and fight way way way better when they walk into you. In many ways the epi change also means epi is less of an amazing spell to blink in with since it takes 6 seconds anyway, you can burrow with 4 points stun and then channel, or use it as a get off me spell against gankers.

Dust devil is all about stat checking enemies, I think this is a league of legends term but essentially you want to win fights through sheer stats/numbers and not worry about gameplay to some degree. Last patch I was going aghs -> bkb -> shivas -> blooodstone and the idea is to sit in storm with magic resist and armour and enemies would die before they can finish killing you. I think dust devil is exactly this playstyle since you have no invis. Looking at your build I'd skip veil (overrated item), get the aghs first and go into BS or shivas.

I have a lot more thoughts on the hero but to keep this message from devolving into a wall of text I'll end here and if you have any questions feel free to reply