When equipped with Evil Spell:

Increases damage of Cross Rain by 30%.
Increases magical damage with Holy element by 20%.
Increases magical damage against enemies of every element by 20%.
Decreases variable cast time by 5%.

[iRO Description]
Set Bonus:
Evil Spell
Evil Vigor (Imperial Guard)

increases Cross Rain damage by 30%,
increases Holy property magical damage by 20%,
increases magical damage against all property enemies by 20%,
reduces variable casting time by 5%.