Ive found in PVE that power does not matter so much or does Star level . But in PvP I am wondering what I should do . I am newer to game so I have not gotten much luck with birds yet . I was getting doubles of 4 star birds I already had and seemed to only get Red, Black and White Birds. Now I have some 5 stars Claude , Thrash , Grand Frost , Anrgy Santa and Now Byron . Should I always just use my 5 stars as they are most powerful ? It seems silly to have 2 blues and 2 reds . Am I better off mixing in some 4s with decent power ups ?