Finished!!!!

[Pokesketcher]

Name: Seraphite

Type: Ghost-dragon

Description: After overcoming it's grief and confusion, it hands over its life for its trainer. And no matter what times it will go through, good or bad, right or wrong, and no matter who trains it, it will cherish life and adventure anew.

Physiology: Seraphite has six wings which it uses to fly great distances, and the pearls control weather and sense the moods of people and pookemon alike.

Design origin: This pokemon is widely based off of ampharos, the substitute doll, and a seraphim. Powerful six-winged angels from heaven.

Mega ability: Serene Grace

Mega stone: Seraphimite

The finished product!

Ability 1: Regenerator

Ability 2: Gale wings

You decide the move pool and the mega design developers. (I would suggest putting in some flying type moves, and for the mega evolution, bigger wings and halos on the neck.

[Iron]

Far too similar to http://pokemon-uranium.wikia.com/wiki/Dunseraph currently, though I like the idea of a lighter Chainite evo. I suggest emphasizing the former ghostiness and misery in both name and form.

[PhantomUnderYourDesk]

This one's not bad, really not, and I like its new type (Spectral Dragon♡ ) and the drawing. But I don't see why there is a bit of Ampharos in it...? The substitute doll combined with a seraphim would do it as well, after all, Linkite has nothing to do with Amphi as well. A little more spookyness like Iron said OR more of a protective guardian would be appreviated as well, to make the Ghost-type shine through more.

[Blue]

I like the layers of thought and dimension that have gone into it almost as much as I like the design itself, looks like a strong opponent and fan favourite rolled into one

[Lord Windos]

While I like the idea of a friendship evo of Chainite, I think the way you executed is off, though in no fault of your own, truth be told. The reason are that, as Iron mention, we already have a angel Pokémon (Dunsereph), and that another Pokémon (The Luxi line) has Regenorator as a Hidden Ability (When it will get it, on the other hand, is another matter entirely...). I say emphasize the more Etherial, spiritual aspects of the Linkite line, and find an ability that more closely matches its Guardian nature. The first ability I could think of would be Magic Bounce, as that would fit the role of protecting team mates, but Magic Guard fits as well, as it would allow it to do its job relatively unhindered. Levitate is also an option as well, if you just want a good ability for the 'mon.

I'd say that you could also change its type to Ghost-Fairy, as I believe its fits the theme of 'love redeems' better than dragon typing, and it differientiates it even more from Dunsereph. Good HAs could be either Friend Guard or Symbosis, as those abilities can not only give it a niche that no other Pokémon has at the moment, but it would also give more flavor to the Pokémon itself. Seraphite, Guardian Supreme has a catchy ring to it, no? Its Mega Ability could be either Unaware (If a sweeper attempts to set up, it can Mega Evolve to attempt to shut down) or Stamina (Every time something try to knock it down, if only gets tougher for their effort). Giving it either Haze and Recover on top of that would be a nice addition as well.

[Spiritmon]

It's look very similar to Dunseraph, but I like the idea