Available at the Dark Spell Factory (at Town Hall 8) and purchased with Dark Elixir, Dark Spells are the bite-sized way to inflict big time raids. 

Taking up half the space of normal Spells, these potent potables add a spicy challenge to inventory management. One current spell (e.g. Lightning, Rage) can instead be replaced by two Dark Spells!

Note that all “Spell Storage” still resides in the Spell Factory. The new Dark Spell Factory does not provide any additional Spell Storage.

Dark Spells include:

• Earthquake Spell: weakens walls and buildings – especially strong ones 
• Poison Spell: slows movement and deals constant damage to enemy troops!
• Haste Spell: speed up your troops even faster than the Rage Spell