Is Ranking up a 4 star even Worth it?
With the emergence of 6* Champions, I've noticed it's been easier for me to get 4* crystals, and at times even 5* crystals. (still no 6* though) have 4 stars become the new 3 stars? This is coming from an Uncollected Player. Even though I don't really do the Uncollected challenges. Still way too hard for my 4* team that miraculously finished off Ultron in the last act.