Whenever one or more creatures you control attack, each defending player divides all creatures without flying they control into a "left" pile and a "right" pile. Then, for each attacking creature you control, choose "left" or "right." That creature can't be blocked this combat except by creatures with flying and creatures in a pile with the chosen label.
![Raging River [Unlimited Edition] | Silver Goblin](http://silver-goblin.myshopify.com/cdn/shop/products/cd79ead6-67c9-5b3e-b0cf-680c1acead39.jpg?v=1707111168)
