Graydle Combat (INOV-EN075) - Invasion: Vengeance Unlimited

When a Spell/Trap Card, or monster effect, that targets exactly 1 "Graydle" monster you control (and no other cards) is activated: Activate 1 of these effects;
- The activated effect becomes "Destroy that monster".
- Negate the activation, and if you do, destroy that card.