Board Thread:Wiki discussion/@comment-4881935-20130327060139/@comment-6301771-20130408014915

KarasuGamma wrote:

And my post about is definitely more than "that's what I want". I gave a practical application that you have done nothing to refute. In regards to this particular issue: You know where it's emanating from. You cast the spell. You know where you clicked. Because the CENTER OF EVERY SINGLE AOE SPELL IS WHERE YOU CLICK. BECAUSE VERY CIRCLE HAS A CENTER. THAT'S THE DEFINITION OF A CIRCLE. IT IS A SHAPE COMPOSED OF POINTS OF AN EQUAL DISTANCE (radius) TO THE CENTER. EVERY CIRCLE IS THAT.

Dealing very speficially with your case, you will never place Crystalize right through the very center of Glacial Storm, so diameter will never be what you measure anyways. Whether you can block of an area is dependant on the width of the area, not the size of Glacial Storm.