Forster was a classically trained ballerina. She had trained in gymnastics and studied dance since age four and went on to study at the Royal Winnipeg Ballet. In 2005, began competing in fitness competitions and doing fitness modeling. Placing 1st in CBBF Canadian Championships 2010, 2nd in the Arnold Amateur in 2011 and featured in several fitness magazines and calendars over her fitness career.
In 2010, Forster began training with Lance Storm at his Storm Wrestling Academy and graduated from it in September 2010. She was a part of Lance's Canadian reality series World of Hurt and also season two of the show with Rowdy Roddy Piper. From there, Forster would then go on to compete at various Canadian promotions under the name Taya Valkyrie, most notably ECCW.
After not making any officially recorded debut in WWE or its other programs, Forster returned to wrestling on the independent circuit and continued wrestling in Canada for the rest of 2011.
Forster made her in ring debut for the Mexican promotion Lucha Libre AAA Worldwide under the ring name Taya Valkyrie on November 3, 2012, competing in a six–person mixed tag team match, teaming with Gran Apache and Mari Apache in a winning effort against Cuervo, Faby Apache and Lolita. Throughout 2012 and the beginning of 2013, Valkyrie competed in several tag team matches ending up in both winning and losing sides. On March 3, 2013, Valkyrie defeated Jennifer Blake to advance in the finals of a tournament for the vacant AAA Reina de Reinas Championship. Two weeks later, on March 17, at Rey de Reyes, Valkyrie competed in a four–way elimination match against Faby Apache, LuFisto and Mari Apache but was unsuccessful in winning the vacant Reina de Reinas Championship.
On June 4, 2014, Valkyrie defeated Cynthia Moreno, La Jarochita, La Magnifica, Mari Apache, Sexy Lady and Sexy Star in a seven–woman elimination match to become the number one contender to Faby Apache's Reina de Reinas Championship. Month later, on August 17, at Triplemanía XXII, Valkyrie defeated Faby Apache to win the Reina de Reinas Championship, winning her first championship. On September 12, in her first title defense, at an Independent Total event, Taya defeated Cachorra Flores, Faby Apache, Karina Duval, Muneca Sarcasmo and Princesa Metallica in a six–way elimination match. In her first televised title defense, at the Héroes Inmortales IX event, Forster, now billed as simply Taya, defeated Goya Kong, Lady Shani, La Hiedra and Maravilla (whom she pinned) in a five–way match. She lost the title to Ayako Hamada on March 19, 2017, ending her reign at 945 days, the longest in the title's history. In a rematch between the two, contested in a no disqualification match, Taya defeated Hamada on April 21 to win the Reina de Reinas Championship for a second time.
Since 2016, Forster has been in a relationship with John Hennigan, better known as John Morrison. They announced their engagement in June 2017.
On the September 7, 2017 episode of GFW Impact!, Taya Valkyrie made her debut for Impact Wrestling attacking Rosemary, establishing herself as a heel in the process. A week later, Valkyrie competed in her first match where she defeated Amber Nova, after using a new finisher Road to Valhalla. Throughout September and October, Valkyrie continued her rivalry with Rosemary, which eventually led to a match between the two, where Valkyrie was victorious. The two were supposed to face off again, in a first blood match at Bound for Glory, on November 5, but the match was eventually cancelled due to unforeseen personal circumstances regarding Valkyrie.
After a five month absence, Valkyrie made her return on the March 1, 2018, episode of Impact Wrestling, where she once again attacked Rosemary and renewed their rivalry.
