Serena is the Reason Void Erosion is Difficult

Serena is the next decendant coming in Season 3 and she is confirmed to be a gun focused decendant and not skill based. Which is almost certainly why the void erosion is so damn difficult for most characters to complete. I am 100% certain in order to sell the descendant they will be making her so over powered that she will be exactly what you will need to get through all the stages in void erosion.

The devs are just giving us a taste of how difficult the void erosion can get and how much bullet sponge the enemies are and since season 3 will take that void erosion to stage 50. What better way to complete that content than buying the new descendant and breezeing through the entire thing. I wouldnt even be surprised if Void Erosion will be the place to farm Serena mats.