500 pt Escalation League

I've been asked to join an Escalation League next month at my local meta. Starting with 500pts and increasing 250pts every week till a final week tournament of 1850pts.
First things first, I need suggestions for a 500pt list. I played a couple quick 500pt games last week and did rather well.
Included:
Archon
-agoniser
-wwp
-clone field
-Haywire grenades

2 units of 5x Kabilite Warriors with Raider both upgraded with Splinter Racks and Dark Lances.

And a Talos with Chain Flails.

Suggestions and criticism more than welcome.