Reversal Spell

Think about the last spell you cast, because this will only work for your most recent spell, hex, curse, whatever you did. Think about the actual magic you performed, then think about how it went wrong. This should take no more that 20 seconds AT THE MOST. Then say this in a clear voice in these EXACT words without shuttering, mumbling, getting your tongue twisted, etc.

Spell
My spell went wrong,

Please reverse it,

Don't mess it up,

And don't pervert it.

Effects
Should reverse the last spell you casted.