After winning a fight in ICON, you might get a trophy! A faction specific expendable tool that you can use during your expeditions. It's an interesting choice that sets up a loot table, but it doesn't really give me the sweet sweet Arkentech that I can use as wacky magic items.
I love magic items. I love Sting. I love an Axe of Dwarven Lords. I love a rod of seven parts. I love a robe of many wonders. Stonetop has magic items that i can only describe as "what 5e DM's want when they say they're doing magic-item focused campaigns," and wowie isn't an Astir just a magic item when you think of it?
The Magic items I want are the impactful utility tools that incite players to go "off script" and inject new explicit verbs into the game. They are the gap fillers of what we want out of the game that playbooks and character options don't provide. D&D does use magic items as a non-prescripted character upgrade (here are more spells, or items that improve your attacks, or make you safer) but I have always loved the shit that isn't just like "oh here's something that might be helpful if you get creative" it's more "if use use this device it's going to pivot the moment drastically."
I want to take Arkentech in the pre-established fiction and wrestle with it's context. This is an item found in an Arkenruin that does something crazy. What are it's drawbacks? Does it work outside of the dungeon? Does it need dust outside of the dungeon? Is this item one-of-a-kind or have the top levels of the arkenruins been plundered enough that they're commonplace as far as this technology goes?
But here's what I really want. What I want is the tombrobber's pseudo-archaeology. I want the players to see these powerful items and only briefly dwell on these tools and what they say about the society that made these dungeons. And what about the things that don't fit in? You can see two suspicious items on these tables, the Orb of Dragonkind and the Starlight Reigns. These don't sound very Arken, so why are they here (in this chamber guarded by the Chroniclers).
As a group we really wanted to dive into how empire is carried forward after it's fall. Why keep that to NPCs? Why not put that into the player's hands too?