Sarah Fillier has plenty of offensive reinforcements joining her in New York, after the Sirens restocked their expansion-depleted roster by adding two of college hockey’s top scorers in the first round of the PWHL draft Tuesday night.

The Sirens used the No. 1 pick to select rugged, and hard-shooting Colgate forward Kristyna Kaltounkova. Minutes later Sirens general manager Pascal Daoust completed a trade with the Toronto Sceptres to acquire the No. 3 pick and choose Wisconsin center Casey O’Brien, women’s college hockey’s MVP last season.

“Watching who’s on the roster, I’m just really excited to get started,” said Kaltounkova, who is from the Czech Republic and became the first European-born player selected No. 1 in the PWHL draft. “I’m happy to jump in and help out as much as I can and make an impact immediately.”

Daoust traded top defenseman Ella Shelton to acquire Toronto’s first and fourth-round pick (27th overall) in the eight-team, six-round draft.

The two forwards fill a major offensive hole after New York lost two of their three leading scorers – Alex Carpenter and Jessie Eldridge – as well as starting goalie Corinne Schroeder to Seattle in the PWHL expansion draft and signing process earlier this month. Carpenter and Eldridge combined to score 20 of the Sirens league-low 71 goals last season.

Kaltounkova and O’Brien join a team in need of star power after finishing last in the standings in each of the PWHL’s first two seasons and lags in attendance playing out of New Jersey. And they join a lineup deep at defense and features Fillier, last year’s No. 1 pick, who finished tied for the PWHL lead with 29 points.

“Sarah is one of those players who I grew up hearing her name, and I’ve always been a really big fan of her game,” O’Brien said. “I think we have similar vision and so I’d be honored if I got the opportunity to be her teammate.”

Two Clarkson defenseman filled out the top four picks with the Boston Fleet choosing Haley Winn at No. 2, and Montreal drafting Nicole Gosling at No. 4. The Ottawa Charge also went defense in selecting Cornell’s Rory Guilday at No. 5. The two-time defending champion Minnesota Frost followed by drafting Quinnipiac defenseman Kendall Cooper at No. 6.

The PWHL’s two expansion teams went next with Vancouver selecting 35-year-old forward Michelle Karvinen, a four-time Olympian and Finland’s career leading scorer in world championship play. Seattle closed the first round by drafting Ohio State forward Jenna Buglioni, who is from suburban Vancouver.

Colgate’s Hannah Murphy was the first goaltender drafted, selected in the second round by Seattle.

The Sirens’ first-round splash captured most of the attention of the PHWL’s third draft.

Kaltounkova is reunited with Sirens coach Greg Fargo, who previously coached her at Colgate. Kaltounkova leaves the Raiders after five seasons as the school’s career-leading scorer with 111 goals and second with 223 points.

Another plus for the 23-year-old Kaltounkova, who has spent the past eight years playing in North America, is she gets to stay in New York. “I don’t have to change my driver’s license,” she said with a laugh.

More important was being a role model for girls in the Czech Republic, and two months after she made her national team debut on home soil at the world championships.

“I just hope that those little girls that were watching see that it’s not just Americans or Canadians that get drafted high or No. 1,” Kaltounkova said. “It’s going to be hopefully motivation to all of them and shows that it is possible.”

O’Brien was this season’s Patty Kazmaier award winner after leading the nation with 88 points (26 goals, 62 assists) for the NCAA-champion Badgers. In five seasons, the 23-year-old finished with 274 career points in 182 games to break the Wisconsin record held by four-time Olympian Hilary Knight.

The trade was but the first of several to be made during the eight-team, six-round draft.

Toronto dealt starting goalie Kristen Campbell – last season’s PWHL goalie of the year – and their third-round pick (19th overall) to Vancouver. In return, Toronto landed two of Vancouver’s picks, which the Sceptres used to select Ohio State forward Kiara Zanon (16th) and Minnesota-Duluth forward Clara Van Wieren (23rd).

In landing Shelton, a PWHL defender of the year finalist in 2024, the Sceptres improve a defense that already features Renata Fast. Fast and Shelton are teammates on Canada’s national squad and members of the 2022 gold medal-winning team at the Beijing Games.

And Daoust wasn’t done making over his roster. The Sirens acquired two-way forward Kristin O’Neill and the 28th pick in trading forward Abby Roque to the Montreal Victoire.