Anyone else remember the collective s***storm when back at the start of gen 6 this new Eevee evolution was revealed to be a totally new type that was immune to Dragon attacks? It was a great day for competitive players, and hell on earth for hardcore Scrafty and Hydreigon players.
Every even numbered generation (Sans this one for some reason) we have gotten a new Eeveelution, providing more opportunities to create a pure Eevee team that can serve a variety of roles. Jolteon, Espeon, and Leafeon function as sweepers. Vaporeon and Umbreon are the defensive ones, and Flareon and Glaceon are...underused no thanks to low speed and poor typing/defenses. Where does Sylveon fall under this spectrum? Honestly, Sylveon went a different direction opting to function more as a tank/cleric for your team. It's pretty bulky, has good special attack, and is blessed with pure Fairy typing that makes it an excellent choice both offensively and defensively. However Sylveon doesn't really have quite enough to make it into the highest tier no thanks to poor speed and 4 slot move syndrome which keeps it from running everything it needs to handle any threat thrown its way. But its still incredibly useful and adorable to have on your team.
When you Wish upon a Fae
Ability: Pixilate
Item: Leftovers
Nature: Bold (+Def -Att)
EVs: (HP 252) (Def 252) (Sp. Def 4)
Moves:
Calm Mind
Wish
Protect
Hyper Voice
Set Details:
A set up tank set that capitalizes on Sylveon's bulk and power. Use Calm Mind to boost your special attack and special defense allowing you to hit harder and tank special hits better, use Wish to recover health and supplement it with Protect to burn the turn needed all while scouting and netting extra recovery with Leftovers, and Hyper Voice is your sole attacking move since it becomes a boosted Fairy attack with Pixilate and offers a means to get around Light Screen and Substitute. Invest everything into HP and physical defense since Sylveon already has naturally high special defense that will only get boosted higher with Calm Mind.
Pixie Power
Ability: Pixilate/Cute Charm
Item: Leftovers
Nature: Modest (+Sp. Att -Att)
EVs: (HP 252) (Sp. Att 252) (Speed 4)
Moves:
Calm Mind
Hyper Voice/Draining Kiss
Psyshock
Mystical Fire
Set Details:
Another tank set, but this one trades in the recovery options for wider offensive coverage and higher damage output. Once again Calm Mind boost your special attack to make your moves hit harder and bulk up your special defense, Hyper Voice remains Sylveon's best STAB option with its Pixilate damage boost and sound-based bypassing of Light Screen and Substitute, however you can opt to replace it with Draining Kiss if you need that extra recovery and don't mind halving your STAB's power and trading in Pixilate for Cute Charm. This time however we also have options to handle the types that can take a Fairy attack. Psyshock counters any Poison types that make them think they have the advantage, and to a lesser extent Fire types that also resist Fairy attacks. And finally we have gen 8's gift to Sylveon in the form of Mystical Fire that gives it a means to counter Steel types which it had always had problems dealing with in the past. Leftovers remains as your item since keeping Sylveon in the battle as long as possible is key, though this time you can divert your nature and EVs to HP and special attack instead to maximize your bulk and power.
While maybe not the best Eeveelution, it was still Sylveon and all its adorable ribbony glory that ushered in generation 6 as well as the Fairy type as a whole...not to mention a fair share of weird fanart depicting a biziarre relationship between Sylveon and the now dethroned Hydreigon:
The sheer level of shipping was absolutely ridiculous I tell you: