Save up for the Science and Mystic Dual crystals?
So for my roster, I am stacked up with the good mutants, skills and tech 5 stars, but really need some god mystics, sciences and cosmics. By the end of the month, i'll have around 50,000 5 star shards, so should I save them up for the mystic and science dual crystals? What are the chances I could get champs I need/want like HT, Doom, Sorcerer Supreme, CAIW, Longshot, BWCV or Quake? Does it make sense to save up and get the science and mystic dual crystals? I also have games for either Doom or HT. My main roster is Havok, Starky, Gwenpool, 6 star Miles(synergy purposes) and Aegon/Nick Fury(Rotating).