Normally, yes, your chance of overcoming someone else's MPs is based on your MPs at the moment of casting, not after the cost of the spell has been deducted.
Now if you believe that a Reflected spell gets back to the original caster at the same instant as the spell hits the protected character then the chance of the returned spell is indeed 50%. If it is after (and he has used some of his own MPs and not just stored magic) then the chance is greater.
Was that what we were talking about?
Powered by hypermail