If this card attacks, your opponent cannot activate cards or effects until the end of the Damage Step. Once per turn (Quick Effect): You can target 1 monster your opponent controls; this card gains ATK equal to that monster's ATK until the end of this turn. If this card destroys a monster by battle: It can make a second attack in a row. You can only use each effect of "Juggernaut, Masked Blademaster" once per turn.