Board Thread:Theories/@comment-31099706-20181018152716/@comment-37224578-20181023215945

I don't think it is Ymir controlling Eren. It seems to me that if an indeology can be passed down with the founding titan then there is no reason that a similar psychological imprint couldn't be passed on from one of the other titan shifter to another.

When Eren was ending his last fight with Anne, he had some lines about eating everything. It didn't sound like him, but it also didn't sound like the first kings ideology. I think he is at times over come by the ideology of the attack titan, what ever that may entail. The attack titan may have an innate, built in urge to consume the other shifters. This may have even contributed to the titan wars referd to in Marlayan history.