"Naturia Beast" + "Naturia Barkion"
A Fusion Summon of this card can only be conducted with the above Fusion Material Monsters. While this card is face-up on the field, you can negate the activation of a Spell/Trap Card, and destroy it, by removing from play 1 card from your Graveyard, then sending the top card of your Deck to the Graveyard.