Scroll of Imbue Spark

About 1s 10c on Beta · Alliance (8 hours ago), 85c on Beta · Horde (14 hours ago), and 90c on Beta · Horde (1 day ago), from player scans. A vendor pays 75c, so the auction house pays 1.4× more.

Yes. It is new in Forever — Classic Era never had it.

Sell it on the auction house. After the 5% cut a stack of 5 brings about 5s 23c there, against 3s 75c at a vendor.