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1 DARK Tuner + 2+ non-Tuner monsters
Cannot be destroyed by battle or card effects. Other monsters you control cannot attack. Once per turn: You can target 1 monster your opponent controls; any battle damage your opponent takes from attacks involving this card this turn is halved, also, change that monster's ATK to 0, and if you do, gain LP equal to its original ATK.

1 DARK Tuner + 1 non-Tuner Dragon-Type monster
Cannot be destroyed by battle. When this card destroys an opponent's monster by battle and sends it to the Graveyard: You can activate this effect; this card can make a second attack on an opponent's monster in a row. During your Standby Phase: You can target 1 face-up monster your opponent controls; its ATK becomes half its current ATK, and if it does, inflict damage to your opponent equal to that lost ATK.