In the official art book for Dragon Age: The Veilguard ... called “The Singing Blade” before you’re able to wear Hawke’s old armor. Once you do, you’ll find it in the Lighthouse base ...

The art book shows concepts of Lace Harding ... However, it turns out that Taash was a rogue wearing "dragon skin" armor at one point, while Lucanis was supposed to be a Tevinter agent.