[LV I] [LV II] [LV III]
If you control a spirit with a (soul core) on it, your opponent can only select a spirit with a [Soul Core] on it when using an effect to select one of your spirits.
[LV II] [LV III]
[Armor: White] (This spirit cannot be selected by the effects of your opponent's spirits, nexuses, or magic of the specified color.)