Make 5 and 6 star crystals Nexus
TLDR
Make all 5 and 6 Star crystals Nexus.
Long version
At the end of 2015 when the game was new, we had 59 champions.
Opening a crystal gave you 1/59 = 1.69% chance to get a specific champ.
Today you have 1/176 = 0,56% chance to pull that nice looking Squirrel Girl you dreamed about.
If all (relevant) crystals where Nexus, we would have 3/176 = 1,7% chance.
Equivalent to 2015 levels.
Please make 5 and 6 star crystals Nexus.