Board Thread:Update Suggestions/@comment-28780293-20160714094656/@comment-25856498-20160928135732

Earthquake Spell - Does damage to enemy structures and also stuns enemy ground troops (but deals no damage to them).

At level 1 it does 10% damage to structures based on their remaining health (minimum of 5 damage). This percentage increases by 1% per level up (the minimum damage does not change).

It also stuns troops for 2 seconds at level 1, increasing by 0.2 seconds per level up.

3 or 4 Elixir Rare.

It could be unlocked in that Gloomy Mines arena