u need dex & luk to increase success chance when use pharmacy skill..
AD damage influece by int stat..take some vit to increase ur def & hp..
dex as usual effect ur skill cast time like AD..
for weapon bazerald is good choice if u in low budget..other equip is depend on your budget too..
if u want pvm ,having deviling ,eddga or dl ,tirfing guard is always good..
if u not ic ,u can use phen clip to prevent interrupt cast time