Water Summoning Altar in Heroes 2

Maps that place it

• Uprising
• Betrayal's End
• Fount of Wizardry×2
• Pirate Isles×4
• Colossal Cavern×8
• Dragon's Eye
• For Honor
• Full House
• Great War II
• Ghost Planet 1.1×17
• Hail Unicorns!
• Leopoldville
• Ludicrosity×3
• Pirate Utopia
• Plains of Aekon×2
• Quadruplets×2
• Roc 'Round the .
• Sands of Time
• Seasons Change
• Sharkania
• Surf and Turf
• Terrain Wars×2
• Threedom×3
• Valley of Death
• Witch Hunt