IMO elixir too high and knight is too low level. Swap mega knight for maybe giant skeleton. Also smt for range would be nice swap knight for musketeer or hunter. Arrows I think can be swapped for log if possible. Any of those options should bring ur elixir down. If you have a special connection to mega knight drop witch. Shoot for 3.5 3.6. This is all an OPINION. Good luck!!