Oxino Fluidum is a type of Fluidum Essentia that comes explicitly from the warping of liquid fotia essence, as a bonus action, you can drink this liquid. Should you use this drug you must make a Constitution Saving Throw or become addicted, while addicted, you repeat this saving throw at the end of every day. While you are considered addicted, you must use this drug a number of times per day equal to your proficiency bonus, whether it's by choice of the player or the DM forces it. The DC for this saving throw is dependent on how many times you use this drug in a week, for every time you've used it, add 1 to the DC. At the end of the week, you halve the amount added to the DC (rounded down).
As part of the bonus action to consume this drug, acid pours from your body like sweat filling a 5-foot-radius pool around you, all creatures who end their turn within the pool take 1d8 acid damage. After 1 minute the acid evaporates leaving a hole in the floor up to a foot deep depending on the material.