Alexstrasza by Indydude7

Honestly...not that far off for a two-year-old concept.

Link to official Alexstrasza page.
http://us.battle.net/heroes/en/heroes/alexstrasza/#?skin=dragon-aspect-alexstrasza

I think she will be in the blizzcon this year , a long Ysera

Yay a support who actually is creative!

Anyways onto the meat.
Nerf (buff?) Mother's Sacrifice. Right now it's an instant Ancestral healing--and combined with your already really strong AOE healing, allows you and the team mate effected to fully heal in health. I dunno.

I think this is my favorite of your dragons. The abilities just fit together well while still being interesting. I like the concept of the trait and mother's sacrifice quite a bit, their somewhat novel. As someone who's played tassadar and other shielding heros I know how frustrating it can be to have abilities that work only if an ally engages when their active, like life from death, but life from death allows actual healing unlike shields so it feels like an intermediate approach between shield and standard healing. I'm too lazy to do the math on rather then healing is in line or not, but the concepts all work together and numbers can always be tweaked to the right point.

Only thing I could think that you could potentially add is that you could consider having her egg a bit stronger, but provide xp when destroyed, like murky egg or arbuthar, to keep with the concept encouraging an 'egg hunt' for the enemy to counter her like the other two specalists. In fact now that I think of it an egg can be placed all the way in her fountain as is making it impossible to destroy which seems unfair, maybe make the dragonspawn despawn after traveling a certain time/distance so she has to move the egg up further as the lane is pushed and thus make it vulnerable to being attacked.

One of the ultimates is quite odd, the sacrifice one makes it so if the enemy has a Reghar you basically dont have a choice.

I made a concept of Alexstrasza too, the trait is interesting and your looks kinda different then mine, but still better creative. If you want to see mine here's the link: http://www.heroesfire.com/hots/concept/alexstrasza-completed-3832

Being able to remove all slows and roots every 7 seconds seems strong, especially since it adds a 40% slow. I feel as though it is a hard disengage. Might be good to increase the cooldown so she can't cleanse out every root/slow the enemy team throws.
Some cooldowns to consider:
Thrall/Arthas - 12 sec on root
Malf - 10 sec on root
Rhegar - 15 sec on 90% slow (with talent)