Mitsu the Insect Ninja [DABL-EN016] Ultra Rare

If you control a 'Ninja' card or a face-down Defense Position monster: You can Special Summon this card from your hand. When your opponent activates a monster effect (Quick Effect): You can target 1 face-down Defense Position monster you control; change it to face-up Defense Position, and if you do, change this card to face-down Defense Position, then, if the targeted monster was a 'Ninja' monster, except 'Mitsu the Insect Ninja', negate that opponent's activated effect. You can only use each effect of 'Mitsu the Insect Ninja' once per turn.