[LV1][LV2][LV3] When opposing effects would remove Cost 2/8 "Imaginary Beast" family Spirits you control from the field, you can put one core from your Life to each of those Spirits. Spirits which had core put on them by this effect remain on the field, on the same condition.
[LV2][LV3] (Opponent's Main Step) Opposing Nexuses/Grandwalker Nexuses have 0 symbols.