User blog comment:Linathan/Unit Spotlight: Mayhem Empress Luly/@comment-26140304-20160424044430

Some of you might question the Leader Skill section where it says "boosts Earth elemental damage by 150%" when the LS description in the game says "hugely boosts damage against Thunder types". You can say it's poor wording on Gumi's part considering elemental buffs (provided by units like Shida, Zeruiah, Libera, etc.) do not factor into elemental damage buffs.

It wouldn't exactly make sense since that elemental nerf has been there since sometime before Trial 003 came out and when Zebra got nerfed. The datamine also says so itself.