They could at least make it so the xp requirement does not scale any higher than where it is at level 30, rather than doubling over time (174-175 requires 4600 xp, compared to level 30s 2496 xp). Would also be very welcomed to have additional opportunities for BE, such as additional missions, a small, static amount of BE each game, and a less RNG-heavy champion shard system. Right now, its next to impossible to get the champions you want, especially when you hardly get shards for champions you don't have if you already had all the 450 and 1350 champions. Levelling is disappointing in both how much time you must dedicate, and what you actually get from it, and really shouldn't be the only way to get BE.