Trade in crystals
Just became conqueror and noticed I unlocked trade in crystals but from what I can see it is a horrifically bad deal
3 for a 1/5 odds of a catalyst you want. This means that in expected probability you would need to trade in 15 to get the 1 catalyst you want. however probability is not cumulative so the actual odds are much lower than on paper. And the odds of getting multiple of the ones you want are much lower since 1/5 times 1/5 times 1/5 (enough to take a 4* to rank 5)is 1/125 124 wasted crystals
= or 372 wasted catalysts!
tell me your thoughts but i think their value for money needs a massive buff
3 catalysts = 1 selector maybe as OK value but 3 for 1/5 no way
