Chthonian Emperor Dragon [TAEV-EN019] Ultimate Rare Dark You can only use each

You can only use each of these effects of "Nekroz of Brionac" once per turn

Set: Duel Terminal 3 Card type: Effect Monster Rarity: Common Attack: 1700 Defense: 800 If you control a "Blackwing" monster other than "Blackwing - Bora the Spear"

Set: Gladiator's Assault Card type: Fusion/Effect Monster Rarity: Secret Rare Attack: 3600 Defense: 3000 "Truckroid" + "Expressroid" + "Drillroid" + "Stealthroid" When this card attacks

Set: Battle Pack 2: War of the Giants – Round 2 Card type: Normal Spell Rarity: Super Rare Target 1 monster your opponent controls and 1 monster you control

Set: Duel Terminal 2 Card type: Effect Monster Rarity: Super Rare Attack: 400 Defense: 400 Once per turn

Chthonian Emperor Dragon [TAEV-EN019] Ultimate Rare Dark You can only use eachSet: Tactical Evolution Card type: Gemini Monster Rarity: Ultimate Rare Attack: 2400 Defense: 1500 This card is treated as a Normal Monster while face up on the field or in the Graveyard. While this card is face up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect: This card can attack twice during the same Battle Phase.