Does the weapon not have strong heavy attacks? It’s an attack with huge base damage, big headshot damage multiplier and a 20% crit chance boost. You already one-shot CW’s with someone like GK on certain difficulties. Same with light attacks, they’re strong and meaty.
Heavy attacks feel fine light attaks don’t carry the right punch needed for such a slow weapon. Don’t 2hh do much more stagger and whider sweeps at basically the same attack speed and still perform estreamly well aginst elites? And honestly i don’t see what is the worth to the one shot if the attack is slow and leave you open, 2hh or halberd are much better aginst elites. EX may still be good on paper but in practice is just inferior to the other options that cover her niche.