Elden Ring Shadow of the Erdtree: How to beat Rellana (No summons)

Don't sleep on staggers -- surely there's other ways to do it as well, but this worked incredibly well for me.
The full fight that's unedited starts at 4:54. Up until that point, I explain the idea behind the build. If anything is still unclear, please do ask and I'll try to help in any way I can.

[@Waelly17]

😌😁 i simply showed her my cool new weed cutters and then all of a sudden the boss room cleared🧐

[@fermyonds]

To be fair that works really well too, I love the new great katanas :)

[@rgzgr]

I don't want to spoil it to myself but I want to watch it so you can get views😢

[@fermyonds]

Aw man don't worry about that please! I only post things because I like to. Views really don't matter that much x) it's a nice bonus, sure, but that's about it. Still. Thank you dude. You're the best