Michael could easily tell that the invading forces belonged to the Council of Xylon. He didn't know any other alliance with this many different races. Other than the Council of Xylon, of course.
There were more than a hundred Awakened from more than 50 races, and it didn't take Michael long before he realized that the number of invaders was higher than indicated on the Pillar of Territorial Awareness. More Awakened must have entered the Greater Nature Spirit's domain on his way to the border.
'200? No. There are almost 300 Awakened. Every single one of them is at the 3rd Tier as well,' Michael was perched high up on a treetop near the invading forces with Spirit Eyes fully unleashed.