I only do Master for 250 5* shards a day, Epic is WAY too difficult considering it's targeted for Uncollected players, not Cavalier. The only reason I am doing Master is because I can cheese most of the fights with 4* Ghost + synergies and Archangel
Takes way too long. I mostly quit doing them.
If you dislike 600 5* shards per day (plus loads of other stuff) for no energy cost, I'm not sure what wil satisfy you.
Very easy content. If it’s difficult for you then it’s not meant for your level. Practice more and gather better champs. Feel like a chore? Then don’t do it, you lose nothing.
Is it tedious? Yes. Boring? Kinda. Easy? Yes. Majority of people who complain can't complete the content.
Are the sinister labs worth the effort?