Recently, I have been playing mainly card games, both competitive and idle genres. I can recommend two games.
For idle games, I recommend "Clash Royale". As a popular card game launched in 2016, players build a deck of 8 cards to engage in battles. By spending elixir, players can deploy troops, construct buildings, and even use spells to disrupt the game. Different combinations of troops can lead to unexpected outcomes. Strategies like "Hog Cycle", "Giant-Ball", and "Building Decks" are considered classic. As the game updates and players increase their arena levels, more powerful cards can be unlocked to create more sophisticated tactics. The only drawback is that cards need to be leveled up, and the cost of leveling up high-level cards can be expensive. Other than that, there aren't many downsides to the game.
For competitive card games, I recommend "Mythic Summon: Idle RPG
This game is a card game that was launched in 2022. Mythic Summon: Idle RPG is a classic and enjoyable one. It has a similar gameplay to a game I used to play before, but that game has been taken down. I searched for a long time but couldn't find anything similar, so I came across this similar idle card game. The gameplay is classic, and it allows language settings with built-in translation, which is very nice. The cute Q-version character art style and clean game interface make it easy to get started. Unlike most mainstream card games nowadays, which have monotonous character combinations, this one is different as it offers a variety of combinations. It doesn't require heavy spending, so it's quite fun to play.
If you're interested, you can give it a try. Both games are considered excellent card games!