Over in the Classic Update thread, this caused us to do some investigation:
I can tell you – it was fairly straightforward to find the answer to this one.
Summoning Disorientation is spell ID 32752, and that alone tells us almost exactly when the spell was first built. New spells are added sequentially.
This spell was built for version 2.0.1 of World of Warcraft. Also, we can look at our original version 1.12 and see if it it was there. It was not to be found in 1.12.
I’ve noticed that my memories of the game sometimes don’t line up with reality, and it’s quite valuable for us to have the original data and code from that time period to reference.
Thank you for pointing us in the right direction.