User blog comment:Emptylord/Season 3 - PBE Patch Notes/@comment-5266525-20121110161430

Your Tear of the Goddess tooltip is incorrect. It triggers pff both spending mana AND spellcasts, but it doesn't show all of it in the description.

http://euw.leagueoflegends.com/board/showthread.php?p=9295762#9295762