6* shard arena reminder
You don't, and I simply can't stress this enough, DON'T have to do it if you think the grind is too much.
It's a grind for the shards, always has been - you aren't being forced. Personally, I love them and can't wait to get 20 more sigs on my old man logan. Best tip, put a movie on you've seen before so you can look back and forth at it and your phone and just chill.