Well like the subject i think any attack that stun should stun bosses en less they put conviction or stun blocks on because fire they can attack with efferet and put a 90% negative on them but if i Medusa or baslik it's stun immune to all bosses most the time i know some times it get through but most the time the average boss is immune, its fair because myth best abilities right know is the stun capabilities witch is awesome but if fire can put a negative on a boss then myth should stun or half of what medusa is is useless same with baslik.
I agree that you should have at least a chance to stun a boss with Medusa, or storm lord, etc. It is like Frank for Death, it puts an infection on the target. A useless extra for PvE. Nobody heals in PvE. pods