You've added a huge resource sink - Arena. It requires vastly different builds to Season builds and it will need a lot of experimentation to find the good builds for it. And now you've reduced the drop rates of materials to experiment with builds. Even ignoring the Space issue, this is crazy. Are new players supposed to buy the £5 per craft legendary crates to do this??? Let's remove the arena and go back to the game that was moving in the right direction before the last Beta and start again.