Amber Heard is ready to go under the sea for Justice League.

First reported as in negotiations for the role of Mera in the superhero film back in January, Heard discussed her part and costume in a new interview with Entertainment Tonight.

“It’s interesting. I’m wearing, like, half suit of armor, half scales. It’s strange,” Heard said of the character’s outfit. “But we’re in the process of building it now. It’s coming along.”

Directed by Zack Snyder, Justice League Part One is due in theaters next year. As previously reported by EW, the two-part blockbuster will begin filming on April 11 of this year, and stars Ben Affleck as Batman, Henry Cavill as Superman, Ezra Miller as The Flash, Gal Gadot as Wonder Woman, Ray Fisher as Cyborg, and Jason Momoa as Aquaman, who eventually becomes Mera’s husband.

“It was a little bit of an ‘about time’ moment, and I don’t blame [the studio] for feeling that way, because it’s a long time coming,” Snyder said of the forthcoming blockbuster, which brings together DC Comics’ biggest heroes. “But I do feel like it’s a little bit of a creative hurdle. It seems like an easy thing to do at first glance, the idea that, ‘Oh, we just get the rest of the superheroes in there.’ But you have to [establish] a world where they can exist.”

Snyder first began establishing that world with Man of Steel, but will blow things out in Batman v Superman: Dawn of Justice, which arrives in theaters next week.