You can reveal this card in your hand; Special Summon it, or if your opponent controls no monsters, Special Summon it to their field in Defense Position instead. Once per turn, during your Standby Phase: Take 500 damage. If this card is banished, or sent to the GY by card effect: You can target 1 Set Spell/Trap your opponent controls; destroy it. Your opponent cannot activate that card in response to this effect's activation. You can only use this effect of "Poisonous Viper" once per turn.
![Poisonous Viper [BLGG-EN030] Ultra Rare | Gear Gaming Bentonville](http://bentonville.geargamingstore.com/cdn/shop/files/ygo_placeholder_3e5dec7c-b465-4659-a382-ec8e4b1f70f2.png?v=1780078859)
