After playing just over a year as a C2P, I had only Guardian Kong as a 5* Red and with 12 Rings in inventory, just went ahead and starting to max him, at 4-72 he is almost there. In mono red stack with BT, Wilbur he actually works really well in offence, so no regrets also.
When I decided to give him rings, I was certain that the game would immediately give me another, most probably a better 5* Red. Well, now 2 days in a row TC20 gave me Azlar and Khagan.
From fighting against them it feels Azlar is better than Khagan, but I honestly didn’t care much about either of them before this, so I am open to suggestions. If I ascend one, it will be used in Red mono replacing probably Colen and probably on def team replacing G.Kong.