Dispel

The process of a mage erasing an existing spell is known as dispelling. Whereas counterspelling is used against another spell as it's cast, this action is performed when a spell has been active for a time.

To perform a dispel, the mage chooses an opposing spell to cast. Spells can be removed by using either the Nullify Magic spell, or a spell that is opposite to the one in place. Each spell lists a Counter if it has such an opposite. The mage then makes a Casting Roll opposed by the original Casting Roll made by the mage who cast the spell already in place. The spell in place and the spell used to dispel it must be at equal Intensities or the dispel action fails.

Example Dispel

Celeste realizes that one of her allies is suffering from the effects of an Intensity 3 Curse spell.

She casts Bless at Intensity 3, and rolls a Casting Roll of 26. The original Curse spell had a Casting Roll of 22.

The spells counteract one another. If she were to have cast Bless at Intensity 2, or failed the Casting Roll, nothing would have happened.

Note also that a spell can be dispelled at will by the mage who originally cast it.