Wardancer's Seismic Strike

Just a quick question hopefully someone can answer on here. On the second row of Seismic Strike is a skill called Upright, it says “Pound the earth while standing in place without jumping to create an earthquake.” Now that’s great and all, but what does that mean mechanically? Is it faster? shorter time to the blast? Harder to interrupt? Thanks for the help.

it does

I’m guessing it does all three is what that is supposed to mean?