Naturia Forest [DREV-EN051] Common Case during damage calculation (in either

during damage calculation (in either player's turn): You can send 1 face-up "Fire Formation" Spell/Trap Card you control and 1 "Fire Fist" monster from your hand to the Graveyard once per battle

if a "Steelswarm" monster is Tribute Summoned face-up

Set: Legendary Dragon Decks Card type: Normal Trap Rarity: Common Tribute 1 DARK monster with 1000 or less ATK

You can only use 1 "Crystron Thystvern" effect per turn

then target 1 "lswarm" monster in your Graveyard

Naturia Forest [DREV-EN051] Common Case during damage calculation (in eitherSet: Duelist Revolution Card type: Field Spell Rarity: Common Attack: 0 Defense: 0 If you negate the activation of a card your opponent controls, you can add 1 Level 3 or lower Naturia monster from your Deck to your hand.