Argisto said: »
During this testing I found an interesting detail. Whenever Paralyze would land for full duration it would always be accompanied by the "Magic Burst!" message in the log. Whenever Paralyze was partially resisted the log would always display just the normal spell landing message. This made it possible to determine spell duration at the time of cast. It seems like only spells that land for full duration get tagged with the "Magic Burst!" log message for whatever reason.
That's really cool info. Thank you very much for your hard work and curiosity.