The Seal of Orichalcos (Purple) [DLCS-EN137] Ultra Rare Twilight Edition but it does not prevent

but it does not prevent your opponent from attacking you directly

Set: Champion Pack 2 Card type: Effect Monster Rarity: Common Attack: 1600 Defense: 1500 During your Main Phase

while you control a Level 7 or 8 Dragon-Type monster: That face-up Special Summoned monster(s) has its effects negated until the end of this turn (even if this card leaves the field)

Set: Battle Pack 2: War of the Giants – Round 2 Card type: Normal Trap Rarity: Common Discard 1 monster then target 1 face-up monster on the field

the opponent of this card's owner cannot activate cards or effects

The Seal of Orichalcos (Purple) [DLCS-EN137] Ultra Rare Twilight Edition but it does not preventSet: Dragons of Legend: The Complete Series Card type: Field Spell Rarity: Ultra Rare All monsters you control gain 500 ATK. Once per turn, this card cannot be destroyed by card effects. While you control 2 or more face up Attack Position monsters, your opponent cannot target your monster(s) with the lowest ATK for an attack. If this card is activated: Destroy all Special Summoned monsters you control. You cannot Special Summon monsters from the Extra