I posted my little raider here before but after a brief dalliance with infinite Vaal Molten Strike I decided I liked this better and specced back to it and upgraded it a little. It's fun. Reports indicate we need 140% inc projectile speed which is easily achieved thanks to the massive 50 from dagger mastery, then we have 23 from gem, 30 from helmet enchant, 15 from Vengeant Cascade which is 118% inc, so that's x2.18 and 15% more from projectile mastery is another x1.15 which comes to x2.5070 -- PoB says 2.51 I am not sure whether it's rounded up or down but luckily it doesn't matter: the video shows the projectiles returning and thanks to our Herald of Ice the screen just explodes.
https://pobb.in/VlCFgSPyL-4v I don't care about PoB numbers, probably it could be configured to more appropriate numbers, fun is the point for me. Note PoB is upgraded since video with +1 frenzy on Southbound.
Next upgrade would be grabbing a quality vortex to make our bonechilled areas even bigger. I will also get another level for +2 pierce.
Since our movement speed is already very high we can lose a little by dropping Daresso's and instead get a chest with attack crit and additional curse and then a frostbite or ele weakness ring. However, Daresso's armour/evasion is near impossible to match with a rare so that's something to consider.
A warning: this is a mapper. It can take down one shaper/elder guardian/elderslayer without issue but doing an invitation of these is beyond my abilities. While I suck at this game, no question, it is a melee build at the end of the day and not a tank at all. But it's a hell of a mapper for sure.