What is the name of the Jedi who is the first on-screen user of the Darksaber (in canon animation)?

The story behind the answer

Only one option is actually a Jedi—the Mandalorian who forged the Darksaber—so he’s the correct choice. The others (Pre Vizsla, Sabine Wren, Bo-Katan Kryze) are prominent Mandalorians who wield it later in The Clone Wars and Rebels, but none are Jedi. Note: Pre Vizsla is the first on-screen wielder overall in The Clone Wars, but he isn’t a Jedi, which rules him out here.

Created during the Old Republic, the Darksaber was kept in the Jedi Temple after its maker’s death, then reclaimed by House Vizsla. It became a powerful symbol of Mandalorian leadership, later passing through hands like Pre Vizsla, Darth Maul, Sabine Wren, Bo-Katan Kryze, Moff Gideon, and Din Djarin. Rebels’ historical recounting cements the blade’s origin and its unique status as a Jedi-forged Mandalorian weapon.