The video for the location made me sick, is it stabilized?

I believe, that is improves your adaptability, small step for 120 agi.

it increases your adaptability which increases your agility which increase the amount of i-frames you have (also it increase the speed you chug.)

It adds 5 points of adaptability. So yes it can give you I frame or even 3 I frames if you never invested points in adaptability. In another words it gives you as many I frames as 5 more points of adaptability can + gives invisibility during rolls. Since adaptability governs also various resistances they are increased a little as well.

RIP Coolio

probably because it's a DLC item; it sortof seems like everyone jumped on BB instead of actually finishing the DLC guides - it's sortof hard to find a good one.

unless you play on xbox 360 or ps3, the dlc is included in every version

Or ps4/ps5

Just equip the ring while already having 110 agility and look at your stats