Beam staff can do three things. No other weapon can do that. It can snipe specials easily. It can melt bosses with the crit bug and it can knockback and clean hordes.
On top of the pyro ability can be spammed with zero risk and zero aim. You can even shoot it forward or to the sky and it finds a special all the way in the back. Sienna is a low risk high damage char which makes no sense. Even the dagger can clear waves easily with its dps.
She literally turns 3 players into spectators. And ‘I main sienna xD’ players feel like everyone should move out of the way because she has to do it all.
I don’t know on lower difficulties but when I play champion/legend with sienna or play with a decent sienna myself it’s literally the sienna show.
Play with a drakegun IB and flamethrower sienna and even on champion they clean waves while noone has to do a thing. Why can flamethrowers still do that even on higher difficulties.
When I play sienna it just gets boring so fast. You can spam every strong ability and attack without any risk at all. The pyro ability recharges way to fast taking out a few specials with autoaim. Can shoot it in the air and it will find a target.
Her ability needs to be looked at and her staves aswel.