Conservative Casting

You can preserve a spell even when you fail to cast it.

Prerequisite: Concentration 4 ranks.

Benefit: Whenever you lose a spell due to a failed concentration check or arcane spell failure, you do not lose the daily use of the spell (even though you still fail to cast it). If you have at least 4 ranks in Use Magic Device, this also applies to magic items and charges and thus you never suffer mishaps (see Use Magic Device). If a spell you cast is counterspelled, there is only a 50% chance that you actually lose the spell, but otherwise you still keep its daily spell slot. This does not function against spells you cast that are later dispelled.