Major Mana Potion
From WoWWiki
55- Major Mana Potion
- Requires Level 49
- Item Level 59
- Use: Restores 1350 to 2250 mana.
- 1 Charges
- Cooldown: 1 min (Out of Combat)
- Vendor 60
- Sell 15
Major Mana Potion is a potion that restores 1350 to 2250 mana.
Source
The alchemy recipe to create the Major Mana Potion is a rare (6%) drop from Darkmaster Gandling in Scholomance and can be purchased from Magnus Frostwake, a ghost in one of the buildings outside the entrance to Scholomance. Magnus is normally invisible, however; characters must complete the Scholomance quest chain "Justice for the Sarkhoffs," which begins with 
[60D] Doctor Theolen Krastinov, the Butcher, to see him and purchase items from him.
It is crafted using Recipe: Major Mana Potion by alchemists with a skill level of 295.
 | 3x [Dreamfoil] |  | 2x [Icecap] |
 | 1x [Crystal Vial] |
Notes
This potion shares the same 1 minute cooldown as all other healing and mana potions, provided the imbiber is out of combat.
