I hate it too, will look into it. Toxicity screen effect is stored in fx/gameplay/states/toxicity/ but its w2p extension so I doubt we'll be able to edit it without redkit.
You gotta be more precise. Do you want all tiers (enhanced, superior etc.) of Griffin armour to look like the basic armour or do you want it to be (visually): enhanced griffin -> enhanced wolf ? If that's what you're looking for then: http://www.nexusmods.com/witcher3/mods/200/?
Good idea, I'll try it later. In the meantime - are you guys looking for any particular cards? You can add them through console, just give me the names of cards you missed and I'll dig up their item codes.