well, between those 2, i’d probably only take valk if you need it. A few pieces wouldn’t hurt if you find yourself dying too much for your liking but zerk is just going to kill stuff quicker. i’d maybe get zerk weapons/armor with valk trinkets, and if you’re staying alive pretty easily with that, swap in some zerk trinkets instead. the higher DPS you have, the quicker you kill things so HP won’t matter much if they’re dying asap.