Zombie Card idea - Gunshot attracts zombies

[Brentis]

Zombie Sense: When a Hero makes a Ranged Attack roll 1d6 for each Zombie on that board tile, that is not subject to Zombie Hunger rules. Results as follows:
1-2: No effect.
3: Zombie moves one space in any direction (Zombie Player's Choice) - simulates the Zombie is aware of the sound/vibrational disturbance, but cannot pinpoint exact location.
4-6: Zombie moves one space toward the Hero initiating the Ranged Attack, in a manner that would represent the shortest distance travelled towards the Hero - sort of like a semi Zombie Hunger rule.

I love this!!! I am making a variant of the game as an RPG. This is the perfect rule for ranged attacks. Thanks.