I want to say ''Hasle in the castle'' but because of Brock's zubat evolving it was a filler :/ so I'd have to say I would like to have gotten rid of ''Ariados Amigos''
I don't use "uber" Pokemon , I do calculate stat values, I don't use cheating devices, I don't breed my way to perfection, and I somewhat care about natures. I catch my Pokemon the way they are, and treat them like individuals instead of brainless drones. If you use this philosophy, copy & paste this into your signature. (Started by Tyranitar but re:worded by me)
HeartGold (Used this one unless I tell you otherwise)