Shalon is pretty and, because of her ability to channel, still appears young.
Shalon's exact level of strength in unknown, nevertheless from the battle during the cleansing of saidin we know that she is stronger than Verin, who was at level 17(5), and so Shalon is surely a quite strong channeler and able to open alone suitable gateways for Traveling.
The Bargain Edit
During her time spent at the Sun Palace, Shalon met and befriended Ailil Riatin, a Cairhienin noblewoman. The friendship became a sexual affair; a fact the pair went to some length to conceal, due to the disgrace that Shalon's extra-marial affair would cause her.
They are discovered together by Rand, shortly after the Asha'man assault on the Sun Palace and, unaware of what he has discovered, he shields Shalon and ties them up under their bed for their own safety, and for his.
They are later discovered and held captive by Cadsuane Melaidhrin, and mistakenly believe she is aware of their secret, unwittingly revealing it themselves. Cadsuane and Verin Mathwin both now know the true nature of their relationship and are using it to blackmail the pair into helping them.
Along with her sister Harine, as official ambassadress to the Dragon Reborn, Shalon accompanies Cadsuane's group to Far Madding. There they visit the Hall of the Counsels and Kumira Dhoran explains the use of the Guardian ter'angreal.
Later Shalon participates in the Battle near Shadar Logoth during the cleansing of saidin. There she links with Verin and Kumira to protect the Rand and Nynaeve, patrolling the area. Shalon is the strongest among the three and wants to lead the circle but Verin (who secretly holds an angreal) does not permit it.
They are attacked by Graendal during the battle and though they are able to fight her off, Kumira is killed.
She then goes with Harine, when Harine is summoned by the First Twelve. They go to Tear, when the meeting was in Illian and Zaida din Parede Blackwing is elected Mistress of the Ships. Harine is punished for her bargain being found wanting with Rand. Zaida then summons the First Twelve again, where they meet with Rand's ambassador Logain Ablar. During this meeting Cemeille din Selaan Long Eyes comes with the news of the Amayar committing mass suicide.
Later Rand asks Harine again as his Sea Folk ambassadress and she is seen with him in Bandar Eban. Most probably Shalon is with her.