Has anyone made Ice Shards work?

I'm playing around with an Ice Shards build, using some of the new "Hazard" passives added to the passive tree, and hopefully juicing up my flat physical damage pre-cold conversion through the Amazon's 'Penetration' node, since crossbows can roll with super high accuracy (700+), which would convert into tons of damage on paper.

However, I'm struggling with figuring out what support gems are actually useful for this ability. It's fairly clunky, since the ice shards need 0.5s to activate to take advantage of the massive damage multiplier they recieve, and direct hits with the projectiles do awful damage.

Has anyone tinkered around with this ability or is it just complete garbage? I know it's not great, but I like making janky builds - this one just has me stumped a bit.