Naix, catch yourself a Bellsprout and name him Shrub.
This Bellsprout manages to get his vines on your Pokedex, and decides to follow it blindly.
Originally Posted by Fat Red Pokedex (Bellsprout)
A carnivorous POKéMON that traps and eats bugs. It uses its root feet to soak up needed moisture.
Following this data, Shrub tries to trap all opposing Pokemon, as he has trouble identifying Bugs.
After level 13, he can only directly attack a Pokemon if he is Wrapped around them.
He must solo a gym leader to evolve.
As a Weepinbell...
Originally Posted by Fat Red Pokedex (Weepinbell)
It spits out POISONPOWDER to immobilize the enemy and then finishes it with a spray of ACID.
Following this new data, Shrub must learn both PoisonPowder and Acid, and always lead with one or the other.
He can evolve after he soloes every trainer in a gym (Including the gym leader) with those two moves alone.
As a Victreebell...
Originally Posted by Fat Red Pokedex (Victreebell)
Said to live in huge colonies deep in jungles, although no one has ever returned from there.
Following this new data, Shrub tries to create his own colony, but he doesn't get along well with others.
He must solo every Grass-type he sees, unless this conflicts with another solo.
Good luck! (I can make it harder if you wish)