Hi there, in a few games I have seen these huge stacks of one earth elementals, 3 crag warriors, and 3 earth shrills wander the map from around turn 20... These stacks are impossible to deal with and I never saw them wander en-masse like this in earlier beta's, was some leash toyed with? 
Edit: Want to underline that I had not met the wildland before meeting the creatures for the first time.
Here is a later screenshot when I found the stack again 
Sincerely
~ Kongdej
