I did this last season with m'avina's set, helm, bow, armor slammed with plus skill. 7 skillers, 5 magic LC's. Prayer merc with a beast. And it was pretty damn good. I didn't use valks because their too slow/dumb. Just dump in frw and rolled through all maps.
I have freezing arrow every season, full mavs, full -5/4 facet’s, act 5 merc with beast, last frame of ias sure,-62% enemy cold skill dmg, full rezZ, 5 life and 9 mana aek, 130% frw, holy sh*t bro every map with more than 250%+ density around 9 to 12 min, she is beauty 😊
I recommend to use this tool to calculate you ias. Its hard to tell just like that it depends on which weap your using and also how many sockets in it. d2.lc/IAS/