Its bothered me that with the release of Improvise, every region now is able to, albeit inconsistently, gain access to keywords that were previously an exclusive feature of other regions (such as Scout and Overwhelm).

This rework would retain region identities when Improvise is used outside Jax decks, but leave Jax unchanged:

First, improvise would be changed to the following:

https://preview.redd.it/zyf2qa2xnlka1.png?width=512&format=png&auto=webp&s=6202bfa3a69a95dd1c044a50781b1774440ab954

Each of the Improvised Weaponry would gain the following regions:

Combat Reel - PiltoverZaun
Fishawack - Freljord, Targon
Pan O' Pain - Demacia
Pot O' Pain - Bandle City
Sandworn Amulet - Shadow Isles, Shurima
Shepard's Authority - Noxus
The Fix-Em 5000 - Ionia
Upcycled Rake - Bilgewater

I get that some of these pairings don't make thematic sense. Preferably some art names would be swapped around as well.

Second, Jax's origin is changed to the following:

https://preview.redd.it/406uvcrynlka1.png?width=680&format=png&auto=webp&s=476bd02c17cd414c357152c929ffd9b6d625d49a

(this makes Improvise work as it currently does in Jax decks)