Spell Field

If your opponent Special Summons a monster(s) with the same card type (Fusion, Synchro, Xyz, or Link) as a "D/D/D" monster you control (except during the Damage Step): You can inflict 1000 damage to your opponent, also, while this card is on the field, your opponent cannot Special Summon monsters with the same card type as that Special Summoned monster for the rest of this turn. If this card is sent to the GY: You can add 1 "D/D" monster from your GY, or 1 face-up "D/D" Pendulum Monster from your Extra Deck, to your hand. You can only use this effect of "Dark Contract with Patent License" once per turn.

EARTH 8

1 DARK Dragon-Type monster + 1 Beast-Type monster Must be either Fusion Summoned, or Special Summoned by Tributing the above cards you control (in which case you do not use "Polymerization"), and cannot be Special Summoned by other ways. If this card destroys a monster by battle: Inflict damage to your opponent equal to the original ATK of the Beast-Type Fusion Material used for this card's Summon.

Spell Normal

Each player draws 1 card, and neither player takes damage until the end of the opponent's next turn.

DARK 8

1 "D/D/D" monster + 1 "D/D" monster If a "D/D" monster you control attacks a Defense Position monster, inflict piercing battle damage to your opponent. Once per turn, during your Standby Phase: You can destroy all cards in the Spell & Trap Zones.