Dark Shadow

Each basic Darkness Energy card attached to your Darkness Pokémon now has the effect "If the Pokémon Darkness Energy is attached to attacks, the attack does 10 more damage to the Active Pokémon (before applying Weakness and Resistance)." You can't use more than 1 Dark Shadow Poké-Body each turn.

Endless Darkness

The Defending Pokémon is now Asleep. Flip 2 coins instead of 1 between turns. If either of them is tails, the Defending Pokémon is still Asleep. If both of them are tails, the Defending Pokémon is Knocked Out.

Darkrai LV.X

DP Black Star Promos

Poké-BODY — Dark Shadow
 
Each basic Darkness Energy card attached to your Darkness Pokémon now has the effect "If the Pokémon Darkness Energy is attached to attacks, the attack does 10 more damage to the Active Pokémon (before applying Weakness and Resistance)." You can't use more than 1 Dark Shadow Poké-Body each turn.
 
Put this card onto your Active Darkrai. Darkrai LV.X can use any attack, Poké-Power, or Poké-Body from its previous level.

Darkrai LV.X - DP19

Diamond and Pearl Promos

Pokémon

Darkrai LV.X - DP19 - Diamond and Pearl Promos (PR)

Card Number / Rarity:DP19 / Promo
Card Type / HP / Stage:Darkness / 100 / Level Up
Card Text:Poké-BODY — Dark Shadow
Each basic Darkness Energy card attached to your Darkness Pokémon now has the effect "If the Pokémon Darkness Energy is attached to attacks, the attack does 10 more damage to the Active Pokémon (before applying Weakness and Resistance)." You can't use more than 1 Dark Shadow Poké-Body each turn.

Put this card onto your Active Darkrai. Darkrai LV.X can use any attack, Poké-Power, or Poké-Body from its previous level.
Attack 1:[1DD] Endless Darkness (40)
The Defending Pokémon is now Asleep. Flip 2 coins instead of 1 between turns. If either of them are tails, the Defending Pokémon is still Asleep. If both of them are tails, the Defending Pokémon is Knocked Out.
Weakness / Resistance / Retreat Cost:Fx2 / None / 1
Artist:Shizurow