Had he been left to a peaceful life in Hasmal Circle--were Thedas a peaceful kind of place that didn't need the service of knight-enchanters--Myr would've gone into spell development in a heartbeat. Where his theoretical rigor might be lacking (at least by the standards of a Circle mage), he's got ideas for days; hearing how others put their own into practical use is always a treat. He inevitably learns something new--

"Who were the authors? Are the books still at Skyhold or have they been transported here?" --like the fact the Inquisition's got ancient texts on spell creation. Ancient texts the Chantry probably banned, or at least restricted. Ancient texts he'd really, really like to read--but, well.

He'd make it work. "--But--no, that's good, that's how I'd do it if you asked me to come up with something like that, though--" There's at least three questions he wants to ask her immediately; he's got to stop and sort that out to keep himself from tripping over his own tongue in his enthusiasm. "--all right, first: Where'd you learn the root spell? Have the Dalish got their own version?" Damn it, that was an extra question he hadn't meant; he bites his lower lip to keep the rest from spilling out so she's got space to answer.