Born Yelena, FrostNova is one of the well-known Reunion leaders. Her leadership of the famed Yeti Squadron and her frigid ice Originium Arts that could control her surrounding temperature and freeze any target earns her many titles such as the "Yeti Princess" and the "Wintry Death." In order to cast her Arts, she chants her spells in the form of folksongs and channels it through her Caster wand. However, this comes with a heavy price. She suffers from extreme hypothermia that others could get frostbite just by touching her skin, and she has to consume chili candies and strong alcohol such as vodka to maintain her body temperature. Her Arts often comes with a deteriorating health and the worsening of her Oripathy. In order to avoid hurting her Yetis, she has been restraining herself from unleashing her full potential which could easily lead to her death.

The white rabbit, her childhood a never-ending tragedy, forced to work as a slave-miner, each day with risk of being executed for drawing the “black lot” for the sadistic pleasure of the Ursine guards. Even Talulah, the Reunion Leader, had undergone severe changes, and is no longer the “humble hero” she once thought her to be. Now her only family is her Yeti Squad and Buldrokkas'tee the “Patriot”.

At the present day, Rhodes Island is knee-deep into the Chernobog-Lungmen, fighting to bring back peace for both Infected and un-Infected, irregardless of race, background or affiliation. Yeti Squad and Rhodes Island fought, had a moment of truce, only to fight again, in the Lungmen substructure… perhaps one last time. With her Brothers and Sisters gone to save her, Frostnova makes her final stance, Originium crystals floating around her.

— Rhodes Island… I’ve been waiting for you. You want to kill Reunion’s commander, don’t you? Now she’s standing right in front of you. There are no living things left around me. I have no reason to contain the winter in me.

Tension… the cold all around bites at your skin.