[Eren shakes his head. His hair is tied up higher than normal to avoid getting wet.]

Whether its a pure titan or the remains of a shifter's titan, it will decay in only minutes after the body is dead. As soon as it is, there's no weight.

[A quiet beat, and then:]

I do have the ability to leave a shell behind now, but it's not quite the same. It's crystal made through a hardening ability. Structures made from that material can stand for hundreds of years. Maybe more.