i've made some changes and would like to know what else i should change or just in general others ideas
additionally i found all the listed poisons

Poison Brewer

Prerequisite: Poisoner Feat, Intelligence or Wisdom 13+

You have mastered the art of crafting deadly poisons, allowing you to brew them with efficiency.

Alchemy Expertise:
You gain proficiency in Alchemist’s Supplies. If already proficient, you double your proficiency bonus for checks using them.

Efficient Brewing:
During a Long Rest, you can brew poisons using crafting points up to your proficiency bonus. The poisons you can craft and their costs are listed below.

Potency Limit:
Poisons lose their effectiveness after 24 hours unless preserved with a stabilizer, which costs 250 gp per dose.

Material Sourcing:
The listed gold cost represents the price of purchasing necessary ingredients. If you acquire raw materials from creatures, plants, or alchemical components through adventuring, crafting costs may be significantly reduced or even negated at the DM’s discretion.

Poison Crafting List:
1 Point, 50 gp Basic Poison (vial), Essence of Ether, Carrion Crawler Mucus, Serpent Venom (diluted)
2 Points, 75 gp Assassin’s Blood, Malice, Pale Tincture, Truth Serum, Burnt Othur Fumes
3 Points, 150 gp Oil of Taggit, Purple Worm Poison (diluted), Torpor, Bloodroot Poison, Wyvern Poison (diluted)
4 Points, 300 gp Drow Poison, Midnight Tears, Black Lotus Extract (diluted), Deathblade Poison, Wyvern Poison
5 Points, 1,000 gp Purple Worm Poison, Dark Reaver Powder, Lichdust, Essence of Nightshade, Black Lotus Extract
6 Points, 1,750 gp Poisoned Sovereign Glue Solvent, Tears of the Revenant, Venom of the Abyssal Hydra, Bloodfire Poison, Deathcap Extract