Here's the technique to your castle stays alive. Constantly click the sword button and don't stop

W̿̈́̋͊͑͐A̗̿͒̇̚N̦̞͑̀ͨ͐̿̑ͭT̳̹̬̰̒ ͕͍̄T͕̩̩̜̩͉͎̐̑Ỏ̬͔̔ͦ͋̔ͪͫ ͍͓̦͚͇̓ͪ̑̽ͥ̓̚H̦̜͎͉͔͆ͅÈ̤͚̙̼̻̃͊L̬͚̪̆͋͋ͪͭ̚P̺̖̹͎̥͖̲ͬ͛͋̔͋ͯ̓?͐͑̒ͭ̉̏̀

Me?

There is 1 in 100 chance to get a rainbow slime, good luck getting that :)