This ultimate really feels lack luster. It was pretty clearly designed from a PvP perspective and I understand they didn't just want to throw gasoline on the unbalanced fire but damn these moves really suck.
I feel like they should of went with adding a stun\knockdown to the base skill would of been a good way to go about it.
Then instead of just refreshing the ult if it executes someone to the first glyph make it so that the enemy becomes marked and if they die within the next 8 seconds the ultimate is refreshed would be awesome.
The second glyph instead of just ignoring armor for only the attack make it so that all moves ignore armor/spell resistance and still gives the immunity bonus for 8 seconds.
These moves are supposed to be "ultimate" I feel like i get more use out of spamming dizzying swing.