Underdog is a Secret Rare Trap Card card from Yu-Gi-Oh! (Blazing Vortex, BLVO). Current market price: $0.32.
Secret Rare
Blazing Vortex (BLVO)
Card Text
During your turn, negate the effects of all face-up monsters your opponent controls. During your opponent's turn, negate the effects of all face-up monsters you control.
