1: ancients spells are velious related.
2: they where buged in the script supsoed to drop only from vulak but loot table was messed up and some times they droped like aryonar .
3: they were fairly very rare drops of vulak pre ring and would take the spot of a normal drop .
4: su`posed fixed when they replaced vulak with a ring than didint quite work for long time.
5: luclin comes out and it begin to drop again , u can notice ancients being inferior in many cases to the luclin new spells. ancients become very easy to get for high end targets who farmed seru vt.
http://www.eqclerics.org/forums/showthread.php?t=5926
Take note about why vulak was removed, outside massive hit points he was by far one of the easiest dragons in whole tov . and every damm drop of him was worth.
another e xample is primal avatar spell droped in sleeper .
Aswell u gotta remember the uprorar around luclin age than lead to the mass introduction of new spells / and fopcus items due to casters claim about the `poor developemtn of the class.
Yes rigth those stupids spells become uber when someone got a focus item.