I'm glad to see how good it looks, really nice job, I'm gonna add some tips to mine (like the fact you can bounce your ult on walls)
I wish I was able to do such good looking guides, but I'm already making so many guides (we ain't many to make them and since I'm quite flex^^) it would take sooo long to make them all like that
I'll upgrade them eventually tho

Is the dimension of the scaling second/(detonated soul orb)?
Dusk Walker is too weak to be viable for healer or dmg Seris. I think if this card was buffed than it would be enaught to be a general escape card (Fade to Black is a healer escape card), and reload buffer card (Sorceress) could be a soul orb speed buffer, as you can see in @TTraw 's suggestion.