Elemental Counter force

When a spell or spell like effect is cast at him/her, the caster may (if learned) use this to counter the spell. Whatever the element used in this spell the counter is opposite so a lightning spell(Air element) would convert to a Earth like spell of exact same damage, range and saving options. A Fireball would convert into a water or ice like spell of the same damage, range and saving throw options.

Spells of higher level are countered only per portion so 75% of 4th, 60% of 5th, 50% of 6th etc.