Future glaivier?(lancemaster) mains, stop buying increase mass. Focus on grudge/cursed doll + keen blunt. Increase mass comes after you get grudge 3/cursed doll 3 + keen blunt 3 + class engraving 3. You don’t need buy it. Its not that essential.
Hell, i refuse to use grudge, 20% damage taken is insta dead for most hits honestly.
Time to increase them prices on the market XD
you can swap it with maybe raid captain? out of all dps engravings grudge is the best imo, but if you wan to feel secure you can swap it. and if you wonder what class engravings KR players are using you can check loawa (the website that players share their builds etc).
I know what they use honestly but I also know my own skill and playing the game lol, better safe than sorry.
Definitely prioritizing Class + KBW on her, maybe going for Grudge as a 3rd line.