Spells: Wizard Tears line of spells all look the same

[Naethyn]

Tears of Prexus
Tears of Druzzil
Tears of Solusek

All have the same spell graphic of a raining fire. On lucy they all show a different spell animation with no history of changes. Is there a reason they are all the same spell graphic on p99?

[Nirgon]

All rains were the same graphic on live this era