in pokemon ruby, i was training my Lv 18 nuzleaf in victory road and this was my first time getting that far, so i didn't know that i had to battle wally at the end, anyhow, when i reached the end wally challenged me to a battle.
my blaziken got destroyed by gardevoir, but in all fairness i was seven
so was my shelgon,cladol,armaldo and walrein!
i had no choice but to use nuzleaf who knew only harden, bide, growth and nature power
know this is the funny part, gardevoir couldn't do a thing to nuzleaf who kept using nature power, which, because i was in a cave, became shadow ball, which is, as you know, a ghost type movei kept using it repeatedly and it eventualy got rid of gardevoir.
hey, i was happy nuzleaf was now Lv26!