Pick any standard 5-star for free once Version 7.1 is live

Across the Frozen Wilds, Honing One's Edge lets you choose one 5-star from the Wanderlust Invocation standard pool, and you get that character's Ascension materials with them. It runs from the 7.1 update until 3 November, 19:59 UTC, and only needs the Wish feature unlocked. You get a single pick, and accounts made after 7.1 ends will get another run of the event later in 7.x.

When

Until 3 November, 19:59 UTC

Official notice