Obsidian Dragon | SGX3-ENI11

Set: Speed Duel GX: Duelists of Shadows
Number: SGX3-ENI11
Rarity: Common
Attribute: DARK
Monster Type: Rock
Card Type: Effect Monster
Attack: 800
Defense: 2100
Description: Negate any Spell/Trap effects that target exactly 1 DARK monster you control (and no other cards), and if you do, destroy them.