Magic vs Magic

[dren]

Here's a homebrew rule I've started using for when spellcasters attempt to break, negate or dispel a permanent magical spell effect. Please let me know what you all think and if it's too hard or pointless.

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Magic vs Permanent Magic

When magic is used against permanent magical effects or long lasting magical effects; the caster must make a power level check to determine success. Some examples of this are: blindness, Baleful Polymorph, Bestow Curse, Dispel Magic, Feeblemind, Dominate Person, Flesh to Stone, Hallow, Harm, Ironwood, Liveoak, Mark of Justice, Mind-Blank, Permanent Image, Stone to Flesh, Symbol (Any), Trap the Soul, Unhallow, Wall of Iron & Wall of Stone

Spells designed specifically to negate another spell, for example a remove blindness spell will instantly work on a creature blinded by magic.

Spells that are continually active until discharged (such as Glyph of Warding) are considered permanent spells. In the case of a permanent beneficial spell or effect (Permanency, Hallow, etc) the dispel or negating magic prevents the use of the ability/spell for twenty-four hours.

 

[Terath Ninir]

I'm not sure why you're wanting to do this. Could you give some background?

 

[Angel Tarragon]

A little more info would help.

 

[Felikeries]

though psionics could make quick work of some lasting spells
if you think about it,and even more so some spells are designed more as the
a better defensive offense is the way to kill the enemy,such that it takes
more than a dispell effort made for one magic through another