Light and Darkness Dragon

This card cannot be Special Summoned. This card's attribute is also treated as "Dark". When this card is face-up on the field, negate all activation of effect Monsters, Spell, and Trap cards. Each time this effect negates an activation, decrease this card's attack and defense strength by 500. When this card is destroyed and sent to the graveyard, select 1 Monster in your Graveyard, then Destroy all cards on your side of the field and Special Summon the chosen monster from the Graveyard to your side of the field.