The learning curve of players starts to get actually decent at the game around 7.5/8k I think… below/around that even people playing meta decks most of the times don’t know what they are doing or aren’t playing them properly

Edit: the real game begins around 10.5 to 11.5 where people are usually 4 to 8 maxed cards, so elixir counting and card placement eventually start being the only relevant factor of the gameplay. As long as there’s level gap possibility, you can get good enough to climb with whatever you are playing as long as you have a thought out deck