[Karat]

How's this?

When Seth and a figure with your Death Marker on its card engage each other, they cannot move out of engagement with each other, be moved by any special power on an Army Card or Glyph, they must target each other for all attacks or special powers that cause wounds, and Seth and the chosen Hero cannot be prevented from attacking each other. When the chosen Hero or Seth is destroyed, return your Death Marker to this card.

The only part of this text that doesn't really sit well with me is the triple usage of "each other", but I am unsure of how to fix that.