[Lv1-Lv2] (During opponent's turn) Cores on all your green spirits cannot go lower than the amount of cores needed to stay as level 1.[Lv2](During opponent's attack step) When an opponent's spirit attacks, you can reveal a card from the top of your deck. If the revealed card is a spirit card in the family "Parasite", "Shell Insect" or "Shellman", you can summon it without paying the cost. If you choose not to summon, or, if it's another type of card, place that card onto your trash.