I was inspired by this build https://pobb.in/zeQxZwv1UAaa 150m+ DPS

So I am trying to make an armour stacker using legacy items in Standard, but it came out so weak in term of damage despite the estimated total cost is around ~30 mirrors.

The PoB I am theory-crafting https://pobb.in/5YDO7y9aRynl ~40m DPS

I did try using Grace on March of the Legion +1 gem and +2 duration corruption but it actually equal out because of losing Tailwind and Onslaught, so I doesn't matter

Also, seeing how low my damage, I doubt I can even do a 50% shock effect but I still set to 50%...

Is it because my armour stacker isn't a Crit build?