Lower level leagues will have lower entry fees, but also lower rewards. Better leagues will have bigger entry fees, but also bigger rewards. Better leagues games will be held in bigger Arenas, where more spectators can watch streamed game (meaning, the team can bring their fanbase to root for them, increasing morale and improving the chances to participate better. This means various player characteristics will increase throughout the game. In order to get into the higher tier league, it’s necessary to secure a top-three position in the lower one (and vice-versa to drop out of the league).