Oval Protection (オーバルプロテクション Ōbaru Purotekushon) is a spheric [[:Special:Ask/-5B-5BCategory:Spells-5D-5D-20-5B-5Bspell-20category::-5D-5D-20-5B-5Bspell-20type::-5D-5D|barrier-type defensive spell]] cast by Nanoha Takamachi, covering every direction like Sphere Protection, but with larger volume so that it can also protect allies nearby. The barrier follows the caster's movement. In StrikerS, Nanoha casts this spell against the all-direction aerial attack of the Gadget Drone groups, protecting herself and Fate who can then attack during her concentrated defense.