Air Summoning Altar in Heroes 2

Maps that place it

• The Abyss×4
• The Giant's Pass
• Fount of Wizardry×2
• Colossal Cavern×2
• Dragon's Eye
• Full House
• Great War II
• Ghost Planet 1.1×18
• Hail Unicorns!
• Leopoldville
• Ludicrosity×2
• Pirate Utopia×8
• Plains of Aekon×2
• Quadruplets×2
• Roc 'Round the .
• Sands of Time
• Seasons Change
• Sharkania
• Surf and Turf
• Terrain Wars
• Threedom×2
• THUNK
• Valley of Death
• Witch Hunt