Attack on Titan: Shingeki no Kyojin

[DarthEnderX]

So they establish that the Attack Titan always refuses to be ruled. But Eren says he's been that way since he was born. And we known the Attack Titan has the memories of its future users.

The implication being that Eren infected all the previous Attack Titan hosts with his rebelliousness. And is the reason they always rebl.

What did he do?

That's the moment he tried to human punch the titan that ate his mom, there was an electrical spark, and then all the nearby titans suddenly attacked her and tore her apart.

At the time, I thought that was the Attack Titan's special power. But we found out WAY later it was cause she had royal blood, so touching her let him use the Founder's power.