[April 10 Livestream: Thanks For Watching!]

Lost my Catalyst due to the server issues too, you're not alone.

[Dojo Or Gathering Place For The Tenno's (Lotus Hideout?)]

It's already been said a Hub is being worked on for Update 8.

[The Stalker - The Secret Of Update 7.0]

Stalker can be beaten solo, was playing solo last night and barely managed to drive him off with my level 20 Frost + Gorgon. Freeze is pretty effective on him (As is snow globe, but you DON'T want to be in melee range with him. Lost my first life to that.), just pray he doesn't use Bladestorm or catch you in a Slash Dash. Died twice, but better than nothing at that level.

[Custom Warframe: Shard]

I saw this thread yesterday but didn't quite want to suggest anything until I thought it over a bit more.

First off, I really like your design! I agree with some of the other opinions in this thread that there's something perhaps a little off with the presentation, maybe having to do with the silhouette. That could be rectified with some more detail to the edges of the face or head, of course. You might want to try adding a bit more frontal profile to the head, like with how you have those flanged blades on her arms and legs. Having no particular profile on the shoulders is fine imo, there are a couple warframes that have normal shoulders.

Secondly: the name Shard seems to evoke thoughts of fragmentation and duplicates to me, so I had a few suggestions for abilities that work off of that theme. They aren't perfect, but I thought it'd be worth putting them out there.

Mirror Image: Shard creates an image of herself that rushes towards a target (to do a melee strike perhaps?), drawing fire until destroyed or a short timer. HP amount of clone would be determined with rank, of course. I think this aspect fits her namesake a bit better, and lets her do double the "tanking" (Or more if you use multiple images!).

Refraction: This is pretty much the ability you proposed, a temporary buff that decreases incoming damage and reflects it to nearby enemies. My only change is that this ability also triggers on Mirror Images too when used.

Resonance: Shard gains a temporary large boost to shields depending on how many allies are nearby, also boosting theirs by a small amount.

(Ult) Dissonance: Shard unleashes a powerful bolt of disruptive energy that arcs from foe to foe, growing in power the more times it has jumped. Relatively short activation range to keep in touch with her tank role, but gives her a direct damage ability that is fairly unique and deadly.

I had a couple more alternatives but I wasn't really happy with them, so those are the best I have. I think it makes her fairly unique compared to the Rhino, and plays off a theme that's only been mildly exploited. I think your concept has potential, so don't be discouraged!

[The Stalker - The Secret Of Update 7.0]

He showed up in my mission as well, said he was avenging the death of Sargas Ruk. Our Nyx managed to Mind Control him and I think it got him stuck or something, just DPS'ed him down after that. Other than that though he was scary as hell, if it weren't for the bug he would've wiped us easily.

[Color Not Reflected In-Game]

I'm getting the same problem as the above poster, and all of my friends are too. I'd really like to be able to set my own colors again.