Up to date information on MCOC

Kilohm

Where can I get up to date information on what champions are contained in Hero crystals (such as Premium Hero Crystals, 3 star and 4 star crystals, 5 and 6 star crystals) and the roster of when new champions are added to these crystals?

Hamin

Trucos usually has all this info.

Crushtest

Crystal dates.
https://mbch.guide/en/crystalls/kristalnye-daty/

5-Star Champions - List, Differences and their Crystals
https://mbch.guide/en/champions/spisok-i-otlichiya-5-zvezdnyx-chempionov/

6-Star Champions - List, Differences and their Crystals
https://mbch.guide/en/champions/spisok-i-otlichiya-6-zvezdnyx-chempionov/

And this picture:
https://mbch.guide/wp-content/basic_crystals.jpg
But I haven't updated it for some time. I'll do it ASAP.