Really depends on what you need, but aside from units I find t6b, t3a and t4a to be the what I go to the most because I can just rank whoever I want whenever I want.
Save for when 7* Magik drops
After banquet this store feels extremely outdated. Let’s wait and see if Kabam gonna improve their “Endgame” store any time soon. You’re probably not gonna reach the cap until that moment
what’s the cap?
A lot of the items in radiance store are well pricey considering u can get them easily elsewhere in game
Mostly go to t4a
mastery point if you are that patient (I'm definitely not)
Otherwise units are what I was picking up for banquet