If this card is Normal or Special Summoned: You can send 1 "Naturia" card from your Deck to the GY.

If you would Tribute a monster(s) to activate a "Naturia" monster's effect, you can send the top 2 cards of your Deck to the GY instead.

If your opponent Normal or Special Summons a monster (except during the Damage Step): You can Special Summon 1 "Naturia" monster from your GY.