More ideas comin' in!
: +Extreme Speed and Sap Sipper
How did it not get this move?! It learns Speed Boost, it has a very high Base Speed stat, and look at the numerous dex entries that mention how fast it is:
"Ninjask moves around at
such a high speed that it cannot be seen" -Ruby
"Because it
darts about vigorously at high speed, it is very difficult to see." -Emerald
"Because
it moves so quickly, it sometimes becomes unseeable." -DPP
As for Sap Sipper:
"It loves
to feed on tree sap." -FRLG
"It
congregates around tree sap." -DPP
: +Dragon / Water typing
Many of Dragonite's dex entries claim it lives in and/or near water, especially on an island.
"An extremely rarely seen
marine Pokémon." -Red/Blue
"It is said that somewhere in the ocean
lies an island where these gather." -Crystal
"It is said to make its home
somewhere in the sea." -DPP
"It flies over raging seas as if they were nothing. Observing this, a ship's captain dubbed this Pokémon
“the sea incarnate.”- Ultra Sun
&
: Levitate over Sturdy
Seriously?! They literally FLOAT IN THE AIR when they are sent in battle! It even makes sense, since many objects use a magnetic field to make it appear as if they're levitating. Besides, Sturdy is useless on these guys anyway.
: +Boomburst
Pyroar is based on a lion. And what are lions most famous for doing? That's right, roaring loudly. And what is Boomburst supposed to replicate? You got it, a loud sound. They literally are perfect for each other. Besides, it desperately needs a nuke to make up for the fact its movepool is horrendous.
EDIT: Whoops, I did not realize that the Magnemite line already got Levitate. However, I did have a new idea:
: +Illusion
"Latias is highly intelligent and capable of understanding human speech. It is covered with a glass-like down. The Pokémon enfolds its body with its down and
refracts light to alter its appearance." -Sapphire
"Its body is covered in a down that can refract light in such a way that
it becomes invisible." -DPP
The meaning of illusion is a deceptive appearance or impression. Latias's dex entries talk about how it can change how it appears, so why can't it have the ability that literally does that exact thing?!