A Duel begins between Ghost Girl, who was investigating the lower levels of LINK VRAINS, and Revolver, who appeared before her. She pulls out Topologic Bomber Dragon, with its powerful effects, and link summons her trump card...
Sniffer Dragon’s effect activates 
when it's summoned or Special Summoned.
Sniffer Dragons Monstereffekt.
Activo el efecto de Sniffing Dragon.
O efeito do Sniffer Dragon é ativado quando ele
 é invocado ou colocado por invocação especial.