In June 2013, Llana revealed that she had been signed to WWE and was sent to their developmental branch NXT. She debuted on the October 23, 2013 episode of NXT, scouting Alexander Rusev. On the November 6 episode of NXT, Lana became Rusev's "social ambassador", using a Russian accent and developing a character who majored in Foreign Affairs and Business and Social Media Marketing in college. Lana made her main roster debut on the January 31, 2014 episode of SmackDown, where she and Rusev in the following weeks appeared in a series of self-promotional videos and speeches. In early May, Lana began dedicating Rusev's matches to her "hero", President of Russia Vladimir Putin, as well as adopting an anti-American, Russophilic gimmick.
Following the November 3 episode of Raw, Rusev defeated Sheamus on the WWE Network to capture the United States Championship. At WrestleMania 31, Rusev lost the title to John Cena after Rusev accidentally crashed into Lana, knocking her off the ring apron. On May 17, at Payback, Cena defeated Rusev in an "I Quit" match after Lana quit on Rusev's behalf. The following night on Raw, Lana justified her actions by explaining that Rusev said he quit in Bulgarian, only for him to harshly dismiss her; later that night, Lana kissed Dolph Ziggler, turning her face and officially ending their association. After Ziggler was injured by Rusev, he returned on the August 17 episode of Raw, aiding Lana during a confrontation with Rusev and Summer Rae. Rae went on to "seduce" Ziggler in order to end his relationship with Lana, but the storyline ended quietly, after WWE announced that Lana had injured her wrist while training. Lana made her return, once again as a villainess, on the November 30 episode of Raw, where she and Rusev referenced their engagement.
On the April 25, 2016 episode of Raw, Lana returned to managing Rusev, After being drafted to Raw as part of the 2016 WWE draft which took place on July 19, Lana made her first appearance for the brand on August 1, where she accompanied Rusev. On August 8, Rusev's and Lana's wedding celebration was usurped by Roman Reigns, and one week later on the August 17 episode of Raw, Rusev competed in a match for Lana's honor against Reigns, but lost. In early 2017, Rusev suffered a legitimate shoulder injury, taking them off television.
On the February 29, 2016 episode of Raw, Lana confronted Brie Bella during a backstage segment, arguing that Bella's fans only supported her out of pity for having a "bad husband", On the March 14 episode of Raw, she distracted Brie during a tag team match against Team B.A.D. (Naomi and Tamina), causing her to lose, and aligned herself with Team BAD. On the March 22 episode of Main Event, she brought the returning Emma and Summer Rae to her guild. As a result, Lana faced off Bella in a tag team match on the WrestleMania 32 pre-show, in what would be Lana's in-ring debut, which her team (dubbed Team B.A.D. & Blonde) lost.
On April 11, 2017, Lana was drafted to the SmackDown brand as part of the Superstar Shake-up. As vignettes hyping her televised return aired, Lana resumed in-ring competition under her new gimmick at NXT live events that same month. Lana made her return on the June 6 episode of SmackDown Live, unsuccessfully vying to compete in the impending women's Money in the Bank ladder match, while also igniting a feud with SmackDown Women's Champion Naomi. On June 18, Lana was defeated by Naomi in her first televised singles match at Money in the Bank. She went on to compete against Naomi two more times on the June 27 and July 4 episodes of SmackDown Live, where she was defeated both times. On July 23 at Battleground, Lana competed in a five-way elimination match to determine the number one contender for the SmackDown Women's Championship, where she was eliminated by Becky Lynch. At the Royal Rumble on January 28, 2018, Lana participated in the first ever women's Royal Rumble match as the 13th entrant, but was eliminated by Michelle McCool. Lana would compete in the WWE Mixed Match Challenge, teaming with Rusev, where they defeated Elias and Bayley in the first round, marking Lana's first official win in WWE. On the May 22 episode of SmackDown Live, Lana defeated Billie Kay to qualify for the women's Money in the Bank ladder match marking her first singles win in the company. At the event, Lana failed to win the ladder match.
Throughout late July, she was booked with Rusev and Aiden English against Andrade "Cien" Almas and Zelina Vega. In the process, this turned Lana face, for the first time since 2015. At SummerSlam, Lana and Rusev faced Vega and Almas which they lost, however they won the rematch on the following night on SmackDown Live. She competed at WrestleMania 35 in the annual Women's WrestleMania battle royal match, but did not win.
On the 30 September edition of Raw, Lana took up a villainous persona again, after betraying Rusev and kissing Bobby Lashley, during Rusev's Universal Championship match with Seth Rollins. After Rusev was legitimately released from his WWE contract, Lana remained in-character, mocking him on social media. Lana then began a feud with MVP, after he tried to gain Lashley as an ally. At Backlash, Lashley was unsuccessful in capturing the WWE Championship due to an altercation between MVP and Lana at ringside, which distracted Lashley and allowed Drew McIntyre to retain his championship. The following night on Raw, Lashley confronted Lana and blamed her for his loss at Backlash, stating that she used him to get famous including making their sex life public. Lashley would then ask for a divorce before leaving with MVP. The same night, Lana vent her frustrations to Natalya backstage. On the June 22 episode of Raw, Lana solidified her alliance with Natalya by distracting Liv Morgan, thus helping Natalya to win the match. In August, the duo began feuding with the returning Mickie James.
On the September 14 episode of Raw, after Lana and Natalya lost to The Riott Squad (Morgan and Ruby Riott), Nia Jax performed a Samoan drop on Lana through the commentator's table. That would become a recurring theme, as Jax would Samoan drop Lana through the table on weekly basis during Raw. On the October 12 episode of Raw, after Lana and Natalya lost to Dana Brooke and Mandy Rose, Natalya left Lana in the ring claiming that she was done, thus, ending their alliance. On the main event on the same show, Lana won a battle royal by last eliminating Natalya to challenged the Raw Women's Champion Asuka for the title, turning face in the process. The following week on Raw, Lana challenged Asuka for the Raw Women's Championship, but was unsuccessful. After the match, Jax Samoan dropped Lana through the commentator's table in the fifth week in a row. On November 22, at Survivor Series, Lana participated at the traditional Survivor Series elimination match as part of Team Raw. During the match, Lana was told by her teammates to stand on the ring steps, not to tag in again. At the end of the match, Jax and Bianca Belair from Team SmackDown were counted out, leaving Lana the sole survivor thus winning the match for her team.
The next night on Raw, Lana challenged Asuka again for the Raw Women's Championship, however, the match ended in no contest as Asuka was attacked by the Women's Tag Team Champions Jax and Shayna Baszler, who were on commentary. As Lana saved Asuka from Jax who tried to Samoan drop her through the commentator's table, the two defeated Baszler and Jax, as Lana escaped going through a table first time in couple of weeks. On the next Raw, Raw Women's Champion Asuka and Lana defeated the Women's Tag Team Champions again after Lana pinned Baszler. On the December 14, 2020 episode of Raw, Jax and Baszler injured Lana's arm and leg making her unable to compete at TLC with Asuka as her partner against Jax and Baszler for the WWE Women's Tag Team Championship. She Returned at the Royal Rumble in January 2021 at number twenty-six, and lasted nine and a half minutes before being eliminated by Natayla. The following night on Raw, she teamed with Naomi to earn a future Women's Tag Team Championship match. They received the title match in a tag team turmoil match on night one of WrestleMania 37 to determine the number one contenders for the WWE Women's Tag Team Championship on night two against Nia Jax and Shayna Baszler, but they were eliminated by Billie Kay and Carmella. On June 2, 2021, Lana was released by WWE.