shadowverse is a pretty good free card game, similar to hearthstone but alot more fair when it comes to obtaining legendary cards from booster packs.

there is also a new expansion coming so we get even more packs, you can use a mobile emulator to make multiple accounts and skip the tutorials to get free booster packs for starting and open the packs in the shop and reset info if you're not happy with the results

ie: if you dont see more than 2-3 legendaries it's better to reset, you can get a average 3-4 legendaries per 10-15 booster packs.

take two is like their arena with random cards that you can choose to build your temporary deck, take two tickets can be obtained from achievements

ie: 1 ticket for clearing story mode for a class.

if you like the game you can purchase cash currency, but i don 't think it's p2w compared to the other ccgs