1 Blood spawn + 1 Kena + Maelstrom weapons would probably be the best option. But I'd recommend to test it on your own since I don't know how exactly you play your character.
Maelstrom weapons are out... Don't care for arena. And don't have kena ATM, so I'm looking a blood spawn for extra defense or say like night silence for the extra 900 stamina
BTW hate autocorrect on phones , I have no idea what a "standing dk" is lol