So this weekend I was in AB and I encountered a hunter. Now previously before this I was reading about spell pushback on the wow forums and how it hurt the mage class the most.
So I decided to see how long it would take me to cast a frostbolt. Now I was under the assumption that after a certain amount of time I would be able to cast my spell no matter how many things were attacking me, but I was wrong.
The hunter started to attack me and then he set off his snake trap and I somehow aggro it and all the snakes started to attack me. So all in all it took me 22 seconds to try and cast a frostbolt before I died.
P.S. I was getting healed.