Scroll of Spirit

About 67c on Beta · Horde (9 hours ago) and 39c on Beta · Alliance (11 hours ago), from player scans. A vendor pays 25c, so the auction house pays 2.5× more.

No. It is in Classic Era too, with the same item level, vendor price and stack size.

Sell it on the auction house. After the 5% cut a stack of 5 brings about 3s 18c there, against 1s 25c at a vendor.