If it's a threat to Piccolo then 18 couldn't handle it. She apparently actually is weaker than 17 and Piccolo should now be stronger than 17 by some unknown degree.
Let the joy of love give you an answer! Check out my book!Also, there's Mr Boo.
Remove the Saiyans from the equation and there is still a really lopsided power distribution in the rest of the cast.
Yes, she's weaker than 17, and Piccolo is much stronger than 17 after his RoSaT training.
Hell, among the humans, Kuririn got a huge power up that put him at the level the others never reached, Chaozu fell behind and Yamcha couldn't compare to Tenshinhan. So even if you manage to make them the only ones capable of dealing with a situation, they're not even in the same league as each other.
edited 23rd May '15 10:30:03 PM by Saiga
I like the idea that Mr. Boo could be stronger if he trained, but he can't be assed because he has a puppy to play with and food to eat, and Mr. Satan to hang out with.
It's adorable, for some reason.
My various fanfics.So...
Instead of a scientist creating the toxin that puts down the Saiyans, it's a wizard! A wizard who also found Bibidi's notes on Buu and managed to find a way to re-seal Buu, but the method doesn't work for anyone else. Failing that, have Buu be incredibly weakened because he recently created Ms. Buu or something.
Also, the toxin affects Namekians, but at a reduced level, making Piccolo weaker, but still able to be relevant.
Offscreen, Tien, Yamcha and Chiaotzu got their power unlocked by the new Guru because he wanted to test his ability to do it or something and they volunteered to be the test subjects.
18 is present and the strongest fighter readily available, so of course she gets caught up fighting the Big Bad's superstrong Dragon that is empowered by the Big Bad's magic, while everyone else has to deal with said Big Bad's mooks.
edited 23rd May '15 10:35:46 PM by IAmNotCreativeEnough
himitsu keisatsu seifu chokuzoku kokka hoanbu na no da himitsu keisatsu yami ni magireru supai katsudou torishimariJust build a time machine and fuck shit up.
PSN ID: FateSeraph | Switch friendcode: SW-0145-8835-0610 Congratulations! She/TheyIdea!
The villain has time travel magic, and strands Goku and Vegeta in some alternate hell timeline where they're fighting for their lives against Gero-created Buu-Cell Monsters (Patent Pending).
Then, you have the rest of the cast fighting the baddy, and Bulma building a time machine to save Goku and Vegeta, thus giving Bulma something to do.
My various fanfics.

English dubs done by the Ocean Group.
Known as the "Big Green Dub" for their decision to rename Piccolo "Big Green". Not just as a nickname, but as his actual name.
I have a message from another time...