Witchcraft Increases the potency of each of Krobelus' spells:
Carrion Swarm - Decreases cooldown and mana cost.
Silence - Decreases cooldown.
Exorcism - Increases the number of Spirits summoned.
Passively increases movement speed.
Notes :
Passively increases movement speed by 3/6/9/12%.
* Carrion Swarm - Decreases cooldown by 1 second and mana cost by 5.
* Silence - Decreases cooldown by 1 second. Cooldown starts decreasing at level 2 Witchcraft.
* Exorcism - Increases the number of Spirits summoned.
* Without Witchcraft = Exorcism summons 5/10/16 ghosts.
* Level 1 Witchcraft = Exorcism summons 6/11/16 ghosts.
* Level 2 Witchcraft = Exorcism summons 7/13/18 ghosts.
* Level 3 Witchcraft = Exorcism summons 8/14/20 ghosts.
* Level 4 Witchcraft = Exorcism summons 9/16/23 ghosts.