Not crazy powerful but a lot of the time that's a benefit
Sapphire Coil can replace the work of some of the characters in the starter deck, so you can swap in better ones
For players, there are iconic cards, such as Pointed Discussion, and Scattered Thoughts, that make perfect display pieces, and there are so many more museum-worthy cards to find
Its especially dumb when you combine it with Blitzball Shot, as you could even cast that combat trick with the first damage trigger and get extra damage with the second hit
You want to have her in play, develop as many Characters as possible, and shell gain 1 Lore when she quests for every Character youve played
If box breaks are catching on, then more sealed product could be opened, leading to a reduction in supply (in tandem with the increased demand due to the popularity of box breaks)