You're simply not creative enough on using her. I'm F2P with C0R0 Raiden, and as soon as Sumeru and dendro elemental reaction got released back then, I stopped using Raiden as a main dps (mainly because I lacked her best support aka C6 Sara). S
Since Nahida's release and getting her, I've had my Raiden switch to full EM, R5 dragonsbane and with deepwood for dendro res shred. Now, even with fontaine and natlan characters my fave team to use in abyss is still my hyperbloom team Nahida/Raiden/Kokomi/Venti or Yelan depends if I need grouping or against a boss.