Welcome to the Dark City ItzPhaeton! Sorry about the late reply.
The archon doens't need ghost plate as when his shadow field fails he will most likely be instakilled (being only T3), so it's generally considered a waste of points to give him ghost plate.
The soul trap doesn't really benefit the archon as he has a venom blade so I would drop it.
What is your plan with the Webway portal? The wych unit is not the most solid of delivery units so they might not be able to set up the portal in a good position if their raider gets taken out and incubi can't assault on the turn they come out the portal leaving them exposed. The portal doesn't do much for your list.
The raider doesn't need a flicker field as it gets a 5+ cover save for moving, and you should be able to give it a cover save if you go second by deploying it behind cover. The chain snares are not needed either as they will most likely not get used.
The warriors don't need a sibyrite in ghost armour he doesn't bring anything to the squad, the points are better spent elsewhere.
You spent a lot of point on your kliavex, the demi klaive and murderous assault are overkill and over costed. I would drop them. Also incubi don't have assault grenades so will be striking at I1 if they charge into cover unless they are accompanied by an archon with a PGL (phantasm grenade launcher).
The best upgrade for the talos is the twinlinked liquifier as it's lethal and can be fired on the turn it comes out of the portal (as it can't assault on that turn). It also gives your more flexibility when it comes to clearing units out of cover (as the talos doesn't have grenades so strikes at I1 when charging into cover). It's also only a bargain 5pts. I would drop the extra close combat weapon as its too expensive for little gain (and doesn't give you any extra attacks if you take the liquifiers).
On the whole your list doesn't have many troops, has an excessive amount of points spent on necessary upgrade and not enough transports. You will have a tough time against a lot of armies out there.
Hop that helps.
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