Forevercraft

Brilliant Mana Oil

Common, Other, item level 55, item 20748

Changed from Classic: the tooltip differs on the highlighted lines below.
Brilliant Mana Oil
Other
Requires Level 45
Use: While applied to target weapon it restores 15 mana to the caster every 5 seconds and increases the effect of healing spells by up to 30. Lasts for 30 minutes.
Sell Price: 10s

Changed from Classic (see below).

Classic's version
Trade Goods
Requires Level 45
Use: While applied to target weapon it restores 12 mana to the caster every 5 seconds and increases the effect of healing spells by up to 25. Lasts for 30 minutes.
Sell Price: 10s