Shadowverse

At rank 3 and above, players start to play a bit better.

They start to constantly abuse the Shaman. (This is an impression of the Heroes of Might and Magic meta in 2017, gathered from three and a half streams.)

In Heroes, the premium monetization content consists of non-craftable animated cards, which are mainly collected by whales who have donated $10,000 and opened billions of packs. A large amount of free content simply helps new players get into constructed mode within a couple of weeks.