User blog comment:XGlass Reflection/Ep. 21 Review~ Holy Shit/@comment-88.153.169.230-20130907022325/@comment-179280-20130907034449

That's why I said it was a joke: Isayama drew Titan forms for all of them as part of a "fake preview" for Volume 11. He sometimes draws joke previews, like the "Sasha beating out Reiner for no apparent reason!" one or the "Armin falls off the stairs!".