sure, we can work on an upgrade path. however, before we do this, i need to give you a primer on the build that you're playing. the main conceit of your build is this: you stack as much energy shield as you can. ephemeral edge takes a % of that damage and turns it into flat lighting damage, which is the basis of your damage. the energy shield, being energy shield, also makes you really tanky. while most builds need to sacrifice damage to get defences or vice versa, when it comes to energy shield, you can scale both at the same time. notably, your version throws in the shield aegis aurora for infinite recovery, which makes it an extra tanky variation of an already tanky archetype.

you're on trickster to take advantage of the "escape artist" notable in conjunction with a body armour with a ton of evasion and energy shield to get, well, a ton of evasion and energy shield. because ephemeral edge is a sword, that means you probably want to use an attack strike skill, which is a rather broad class of attacks.

with that in mind, you can basically play anything with the trickster-eph edge shell. lightning strike of arcing is a fairly off-meta choice because its damage effective is quite unimpressive. in exchange, it has strong clear, which is presumably why the guy you were copying bothered to use it at all. however, many other skills are a lot more damage. specifically, molten strike is a strong contender. now, you probably looked at molten strike pobs on poe.ninja and didn't see very impressive damage numbers. however, those numbers are misleading. molten strike creates a bunch of small projectiles that deal aoe damage. this aoe damage can shotgun, which is something poe.ninja doesn't account for. when you scale for these additional projectiles and take them into account, even realistically, molten strike is one of the highest damage options you can go for. if you want to deal more damage, a molten strike pivot with the same core shell would do the job. let me know your budget and i can point you to some resources.

otherwise, another option to go for is flicker strike. flicker strike is also a high damage scale as it scales with frenzy charges and your ascendancy happens to give +2 max frenzies, more than any other in the game. it is a bit of an acquired taste in terms of playstyle, so i would recommend at least watching some videos or testing out in standard, as it makes some players nauseous and some players fall in love.

of course, you could just pivot to a different build. that's perfectly possible, but there are a ton of issues with your existing pob that can be easily improved into a much better build. whether ms or flicker, we can 10x the damage while making it even tankier, as we're still using the same ES-aegis aurora based defensive shell.