Bag of Spider surprise

A bag filled with 1d8+4 Small coin sized figurines of a spider. As an action you may speak the command word to animate one of them. The animated spider hides within 90 feet of you in a direction you choose, if you can't see the location it goes as far as possible in that direction before exploding with a screech that can be heard 150 feet away. The spider moves at a speed of 15ft per turn and moves on your initiative if in combat.