Talk:Dark (Dark Souls II)/@comment-119.2.47.122-20140815120424/@comment-4511886-20140815125215

It scales with both INT and FTH. And unlike the similar fire damage, it is effective against all but a handful of enemies, including Lion Warriors, the Darklurker and others.

It also is the only magic to use souls to calculate damage. "Resonant" hexes, along with Climax, all cost a predefined amount of souls, depending on which hex is used, to reach the full effect. If you don't have the needed souls, you'll notice a reduced effectiveness. Mainly this affects damage, but can also affect the duration, and bonus you get from using a buff.