6 Star Rank 3s:-

Whom to do Rank 4 first (BTW I am thinking about Dr.Doom)
6 Star Rank 2s:-

Whom to do Rank 3 (First I will do Valkyrie to Rank 3 so suggest me other than her)
Hey guys can I also see your 6*R4s if you have any then please share it with me (Also Rank 5)