Activate only if you control a face-up "Naturia" monster and have at least 1 card in your hand. Negate the activation of an opponent's Spell/Trap Card and destroy it. Then, send 1 card from your hand to the Graveyard.
Exterio's Fang is best to use when you're going for the knockout blow and your opponent has set cards on his/her back row. Use it to negate the Spell/Trap that will interrupt your monster's attack.
By using A Cat of Ill Omen's flip effect, you can search Exterio's Fang from your deck and put it on top of it.
How to beat/farm Arkana level 40
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