You can only activate 1 card with this card’s name per turn.
(1) If you control a “D/D/D” monster: Target 1 face-up monster your opponent controls; take control of it (until the End Phase of the next turn), but its effects are negated, it cannot declare an attack, also if it was Special Summoned from the Extra Deck, it is treated as a “D/D/D” monster.