Poison

ARC undefinedPoison is a ranged magic with unmatched DoT. Most of the attacks have Aoe and linger in the air creating hazards to assist in battle. Its cannot be gain through the spinner, instead a purple crystal will rarely spawn that can give you this arc.

Spawns for Poison Shard are 5 in total.(Pic of shard below)

(These are assumed spawns based off various users) Inside of dark cave on the left of boss spawn (Confirmed)

Inside small cave when going into boss room

near small rock inside boss room

On one of the boss rooms ledge (Confirmed)

(Picture of shard)>