Counter-magic
Close-quarters spell
Once per battle
Action:
Free action to cast
Trigger:
A nearby creature you can see casts a spell.
Target:
The nearby creature casting a spell.
Attack:
Intelligence + Level vs. MD
Hit:
The target's spell is canceled, and the caster loses the action they were using for the spell. If the spell had a limited use, that use is expended if your natural attack roll is even.
Champion Feat:
You can now cast counter-magic twice per battle.
Epic Feat:
You can now cast counter-magic in reaction to a creature using any magical ability, not just casting a spell.