When this card is Normal Summoned: You can send 1 "Naturia" monster from your Deck to the Graveyard. Once per turn: You can target 2 "Naturia" monsters in your Graveyard; shuffle both those targets into the Deck, then draw 1 card.
Send a Level 4 or lower Naturia monster from your Deck to the Graveyard once you normal summoned Naturia Marron. You can then use Spiritual Earth Art - Kurogane to Special Summon that card by tributing 1 EARTH monster from your field. Basically, you can replace a weaker monster with a better one.
You can also send Naturia Pineapple from your deck to your Graveyard by Naturia Marron's effect. It will be special summoned on your next Standby Phase when you don't have another Naturia Pineapple in your field, no monsters except Plant or Beast-Type monsters from your Graveyard and if you don't have cards in your back row. You can then use Naturia Pineapple for tributes.
Sends from your Deck to your Graveyard / Returns from your Graveyard to your Deck / You draw cards
the one con is wrong. you don't have send a naturia monster to your graveyard, only if you want.