Alissa by LagMachine

"Even this place is not safe anymore"
These were the words of a borderline guard once he saw the numerous camps around the base of the Barrier. When the notice was reported to the great archons, they knew that the sanctuary could no longer be hidden from the outside world. Adventurers were already exploring the zone, and that would be only the beginning. After that, kigdoms, empires and entire races would put their hands on the sanctuary.
So, a notice was sent to all the population of Rasorua Azge, to create a recognition squad, able to explore the outside world and face any attempt of invasion.
After a long and rigorous selection proccess, ten young people were separated from their family and trained in both fighting techiques and magic usage, and their endurance was pushed to the limit. During the training, one of them died, but the other nine, after 8 years, were ready for their final test.
They were guided by one of the archons through cave corridors below the buildings of the sanctuary, until they arrived to the bottom of the cave complex. An icy dome raised above them, and the temperature was so low, that even stepping was a hard task, but, they kept going. As they were reaching closer to the center, inmese bones began to apear around, which seemed to form the skeleton of an eldwurm. At the center of the dome, there was the hearth of the eldwurm, that, instead of decaying like the rest of he body, was completely frozen, but its beating could still be heard. The last order the selected ones received was to touch the hearth simultaneously. They did as ordered.
As soon as they touched the hearth, four of them were instantly frozen, and shattered away, and other two were screaming in pain, while their bodies slowly turned into ice. While the three remaining were still recovering from the shock of seeing their friends die, they felt a new power inside them, as if the power of the eldwurm was shared to them, and so, Vescembra, Jorekun and Alissa were ready for their task.
After some days, howerver, Vescembra just dissapeared, saying nothing to no one.
Some weeks later, Alissa and Jorekun were called by the great archons for their first mission. A squad of raiders were scalling the Barrier, all of them armed. Once they arrived the Barrier, Jorekun jumped in and attcked them directly while Alissa used her spells from the backside, all acording to the plan. But, as the fight was extending, the movement caused an avalanche. Alissa and Jorekun reacted quickly enough to scape it, while it burrowed the raiders. Or that's what should have happened. A chain surged from the snow, grabbing Joreku's feet and dragging him towards the snow. After that, the sound of multiple stabbings were heard. When the avalanche stopped, the surviving raiders stood up and kept climbing, while the blodied body of Jorekun was half-burried in the snow. Filled with wrath, Alissa's fury manifested in a heavy snowstorm that burried everything at the Barrier.
The raiders were no longer important, they were already under meters of snow, but also Jorekun was, if he was still alive. She searched his body during days, but there was no sign of him. Finally, she just gave up. There was no way that someone could survive that long under the snow.
When Alissa returned to Rasorua Azge, she told to the great archons all what happened there, but also asked if she could be sent to explore the outside. If she could end the war that was happening out there, her people, and the sanctuary would no longer fear another invasion, and no more unfair deaths would have to happen. Her petition was accepted, and so, Alissa adventured to the outside world, with a new task to complete.

Disclaimer: Rasorua Azge is a place that I created for the lore of some of my concepts. Some details of that place will clarify in some of my future concept's lore.
DATA ABOUT RASORUA AZGE:
* Rasorua Azge is a hidden sanctuary located at the northernmost point of the earth, beyond the Barrier.
* The Barrier are a series of mountains located at the north of Icewrack, mentioned in Tusk's Ice Shards lore.
* Despite the location of Rasorua Azge, a microclimate has formed at the numreous caves of the place, allowing many forms of life to prosper, and of course, allows human colonizers to live there.
* Among the relics that were found at Rasorua Azge are thousands of books of many epochs and civilizations, endemic forms of plants and animals, and technology from before the colission of the Mad Moon.
* The governors of Rasorua Azge, the Great Archons, distribute their jobs, no one of them is superior to the others.
* One of those Archons, the Sapphire Archons, were meant to watch over Icewrack and advert of incoming dangers. However, After Pierpont's descent and hibernation and Rylai's departure towards the War of the Ancients, no notices about the incoming raiders arrived to Rasorua Azge.
* The origin of Rasorua Azge goes back to the age were eldwurms were common, when Boreas, one powerful ice eldwurm, was imprisioned there by his own kind, due to how dangerous he was. There, Boreas written eveything he knew in thousands of books, until, millenia later, a caravan reached the place, and stroke a deal with him, taking care of the place and his books, as he was quite an old dragon, and was at the doors of death, and in exchange, getting all the knowledge that he had.
ALISSA'S TRIVIA:
* All her spells, except her ultimate and Eternal Winter are spells that others of the selected ones had learnt before, and she decided to keep them as a memorial of their death (or dissapereance, in the case of Vescembra).
* Alissa knows Ethreain's story well, and because of that, she tries to stop him.
* Tusk often tries to climb the Barrier, so, Alissa warns him to stop doing it.
* Despite her admiration and respect towards Rylai, Alissa also tells her that she still needs to improve her magic.

Alissa is a versatile support hero who specializes at dissabling and repositioning her enemies, while keeping her allies safe from any disable.
* Purifying Winds is what Alissa must be spamming huring fights, as it can take allies out of sticky situations, and create distance between her allies and her enemies, but also can be used offensively, by casting this on an ally who is blocking the enemy's scape way. The knockback would push the enemy towards your other allies, ensuring someone else's death.
* Cryogenoze is a multipurpouse, bipolar spell that stuns enemies and allies equally, but also makes them immortal and harder to damage. This can be used as a setup for hard to land abilities like Meat Hook or Chaos Meteor, or to give time to your allies to reposition. Also can be used on your allies to reduce the damage they would take, or save them from dying against spells like Assassinate or Reaper's Scythe.
* Frozen Gust is like her signature ability, it allows her do disposition enemies, save allies, ensure kills, scape through cliffs, initiate and lots of other uses. But all of this requires careful aiming and good decision and game sense, as a bad Frozen Gust can easily screw a teamfight, an scape or a gank, or be the winning card for your enemies.
* After casting all her stuff, Hailstorm is the last piece to make Winterwind a broken teamfighter, and the best part is its global range, that allows her to be farming at one side of the map and still participate ina teamfight at the other. The ability becomes better as most time it is channeled, so, is better to team up with heroes who have long disables, or to Cryogenize them before casting, but, it's inmense radius also makes scaping from the area quite difficult.