They're pink, round, and have goofy smiles
And get really cool tails if you wait a while.
They've been known to fight, but usually they chill
Out and lay back. For relaxation they get their fill.
Still people catch them and make them fight
Each other and other monsters until they knock out their lights.
It's OK though, they actually enjoy it
As they gain experience and level-up bit-by-bit.
They're happy (I think) and so very cool,
But don't underestimate, they are not fools.
They relax and fight, just going with the flow.
What creature works to evolve into such a bro?