What crystals need to be updated?

Just curious as to what crystals need a buff to go with the current state of the game, I mean that in a good way! Being so close to r5 6*, and 7* due to come.
I personally would like to see another solo Crystal added, but what’s everyone else’s thoughts??
I personally would like to see another solo Crystal added, but what’s everyone else’s thoughts??
1
Comments
War Victory/Defeat Crystals
Quest Crystals
Arena Boost Crystals need a more relevant variant as well
The Cav crystals need to have a Paragon level with no 3*’s and another discount so they would cost 150 units instead of the Thronebreaker cost of 175 units.
Also, any crystal that is not an arena boost crystal but contains arena boosts needs to be updated to have the boosts removed.
or
At least make Collector Crystal more available, maybe in Sunday Arenas..