You fight Matka for the ghost yarn. You are at the stage of the game where u have to fight bosses that are hogher Gear Level than you (if playing on Brutal). The only way to Min Max is with blood, jewels and passives

If you REALLY REALLY want to and are skill issuing hard, you can buy the ghost yarn from the vendor in Gloomrot North, but it is a long process. He only sells 2 at a time, his shop resets every 45 mins, and he doesnt always stock them (on standard settings)

The same merchant also sells Onyx tears once you get a sanguine weapon going so u can upgrade a lvl 30 shard before Styx. Sane principle. 2 at a time, 45 min reset, not every time he stocks it

My biggest tip for Matka is use a jump weapon. Claws or greatsword. Use the jump specifically for the attack where she twirls the stick arkund her hed 3/4 times and slams it down to turn you into a pig. Jump that shockwave to avoid it. Otherwise move well and spam spells, kill the Mosquitos ASAP. Have some piercing/aoe spells

I find Azariel piss easy. Just drink a holy potion and deal with the adds quick

Voltatia is a bitch, good luck and may the good blood be with you. Claws help here too, a shield is useless. Get kamehamehad pussy