It's a magnet

it evolves into three magnets!

And then a ufo

Magnem...

I don't recall the ufo

The clue doesn't help? There's only three letters after that

my brain doesn't work like that

Its a small magnet

So small it might be an insect type creature

p!catch gastly

Congratulations @InsaneCaterpilla! You caught a level 23 Gastly!

p!catch gumshoos

Congratulations @TB12Goat! You caught a level 39 Gumshoos!

p!catch bellsprout

Congratulations @TB12Goat! You caught a level 28 Bellsprout!

p!catch vaporeon

Congratulations @TB12Goat! You caught a level 23 Vaporeon!

p!catch wingull

Congratulations @InsaneCaterpilla! You caught a level 29 Wingull!