Buildings
Artifacts
Spells
Skills
Neutral camps
Scrolls
Units
Researches
Zeppelin
Runesmith
Frost Cannon
Golden Titan
Alchemist
Wolf Rider
Ice Fiend
Warlock
Behemoth
Arachnid
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Death Knight
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Ent
Almus
Griffin Rider
Alliance upgrades
Emporea: Timeline
Altar of GodsHailstones
prerequisite: Frost Cannon
cold splash damage: +15
research time: 20 hours
maximum level: 1
cost: 4000
15x 
prerequisite: Frost Cannon
cold splash damage: +15
research time: 20 hours
maximum level: 1
cost: 4000
15x
