Cannot be Normal Summoned/Set. Must be Special Summoned (from your face-up Extra Deck) by having no cards in your Extra Deck, except "Dreaming Nemleria". You can only Special Summon "Dreaming Nemleria(s)" once per turn. If this card is Special Summoned: For every 3 of your face-down banished cards, you can banish up to 1 card from your opponent's field and/or GY, face-down, then shuffle 1 of your face-down banished cards into your Deck for each card you banished by this effect.