Hi im a relatively new DM, and the party im Dming for just got to lvl 16, there are 2 sorceres in the party and they both picked wish, i told them that i would allow only one wish per character and the whole party was ok with it because it seamed a bit op, in compensation i said i would be a bit more flexible with the wishes (allow more powerful stuff to be wished), but depending on how big the wish was (and if the wish was approved) the consequences for the caster would be greater. Everything was going well, the first sorcerer asked for help, in a very dificult boss battle, i granted it and all was well, the problem came with the second sorcerer who asked to unlock the fighter's (Eldritch Knight) full potential, meaning that he wishes for her to be able to have spells slot from lvl 5 to 9 because Eldritch Knights only get from 1to 4, this happened as they were entering another boss battle but it was cut as soon as the wish was made because the sorcerer had an emergency, the thing is that i dont think is that far fetched of a wish, but i do think his character should recibe a heavy or permanent punishment for this. Any ideas what the punishment or permanent handicap should be? Thanks in advance