I re-designed Ring's precious little plaything a while ago, and thought they finally deserved a matching new ref sheet.
Trick is an unwilling member of Circus Poképalooza, once an Eevee lured to the circus by Ring and kept there at his whim. Trick has grown into an Sylvee, a mis-evolution whose requirements for evolution (love/friendship) were corrupt during the evolution process. They lack most abilities a Sylveon is typically granted, and share a lot of visual similarities with an Eevee.
Trick is a skittish, cowardly, selfish pushover, and only deals with their boss' antics out of fear of the ringmaster. But despite Trick's lack of ability/strength, the Sylvee does occasionally manage to escape the circus and catch brief moments of freedom in the neighbouring forests. However, they alway ends up finding his way back 'home'.
( Circus Poképalooza is run entirely by pokémon, but it isn't without its flaws. Accidents and sabotages often occur on the centre stage, resulting in all sorts of atrocities and extravagant disasters. It can be marvellous, but spectacularly horrific. The humans seem to think it's fun and games though, and that's all that matters - they're the ones paying for the tickets. )