Altar of Storms (Warcraft II)

Carved from the Runestone at Caer Darrow, the Altar of Storms channels dark and arcane energies through the bronze figures that tower above it to pervert the innate Elven magiks of the Runestone. These energies, lost when the Orc Warlocks were destroyed by the Doomhammer, are now used to create the powers of the Ogre-Magi. It is here that the Ogre-Magi are imbued with new spells and skills to aid them in their fight against the Alliance. The Altars are avoided by the rest of the Horde as the intense energies that emanate from their cold surfaces can be... unhealthy.

• The Altar of Storms allows you to upgrade Ogres to Ogre-Mages and research their spells.

• Ogre-Magi will automatically gain the Eye of Kilrogg spell once "Upgrade Ogres to Ogre-Mages" is researched. However, they will not get the spell if placed directly on the map using a third-party editor (they cannot be placed on the map using the editor provided with the game).
• In scenarios where you control both Horde and Alliance units, upgrading Ogres to Ogre-Magi will also upgrade Knights to Paladins and give them the Holy Vision spell. Researching Bloodlust or Runes will not grant them the equivalent Alliance spell (Healing/Exorcism), however.
• The hero Dentarg will also gain any spells researched here. The hero Cho'gall always begins the game already knowing all Ogre-Mage spells. Uther Lightbringer and Turalyon will gain Holy Vision when you upgrade Ogres to Ogre-Magi.

• Altar of Storms (Warcraft III)