New event suggestion

Hello, dear devs, with every new 2-star and 5-star gem you release, chances of obtaining the ones we collect becomes less and less possible. Free 2 play players count on normal legendary crests that doesnt sell. Will be great if you manage to put event in which we can change bound gems to those we collect. Every 2 and 5 atar gem can be sort in tiers and for example blood soaked gem to be exchanged for roiling or hearthstone or lament - spectre or else. You can pit limited event to be able to exchange 1-2 or 3 gems to these we collect.
Please :slight_smile: