Lull Spd/Def 4

Inflicts Spd/Def-X on foe (X = 4 + number of【Bonus】effects active on foe; max 8; excludes stat bonuses) and neutralizes foe's bonuses to Spd/Def (from skills like Fortify, Rally, etc.) during combat. 

【Bonus】

All effects that last "for 1 turn" or "that turn only." Includes bonuses granted by a skill like Rally or Hone and positive status effects (extra movement or effects like Dominance).