Notes from author
Your name is Annie, You are an exiled painting garden, and thou you turned undead and lost your only meaning in life, you find it in the fair lady. You now live to spread chaos, and continue Eingyi's work.
My head cannon is that Eingyi's is the one who caused the poison swamp, much like how the witch of Izalith attempted to duplicate the first flame from a soul, and got consumed by it. Eingyi was trying to make a new branch or pyromancy, and created the poison swamp.
Items
Wolf Ring - I play with no Poise and am having a hard time vs great swords, the Wolf rings helps with that, but if you dont need the poise then use the dragon crest ring for + 20% damge
Dark Wood Grain Ring - ninja flips
Gold Hemed robed - Fits with the story the best, your trying to make more pyromancy's - why not get closer to the original one, plus it looks sick.
Panting gardening's set, lighter, more poison/magic resist, and it fits with the story.
Painting Garden sword - Stacks posion on like no one else, bast scaling, buffable and fits with the story
Iato - buffable, longer reach, bleed, and hits decently fast
Chaos blade - Bleed, and fits probably the best with this charter
Gold tracer - hits fast, great scaling and dose bleed.
Sliver tracer - Hits fast, great scaling, and dose toxic
Winged Spear - Very long reach, Decent scaling, and bast of all it's buffable, great poke.
Black Bow of Pharis - great scaling, hits fast, and remember to use poison arrows
PryoFlame - kind of obvious, but it lets you use poison and toxic mist.
If you have to have a shield its up to you, i like the crest shields and grass, but i don't use them on this build. (there will be someone who says - this build sucks, no shield, noob learn to build)
Past 100
I would get more spell slots + hp + Stama or Int/faith if you want some buffs, or spells
This build could do with some touch ups, and its up to personal preference on a lot of things.
So thats Annie, have fun