So first off, I would like to give credit to the people that made this.
Knight of Scape suggested the idea and was a large contributor.
Myself (Minor Contributor)
A friend of ours (Contributor, sadly unnamed for security reasons)
It's quite simple. Anytime you are defeated, add 1 permawound to your card. When you stand back up, you stand back up with half of the Max. Life you had before taking this permawound. This means that you CAN die permanently before the endgame rolls around, and while it does change the game balance just a little bit, it leads to entertaining games.
Additional House Rule: While this won't change the game a whole lot, a rule that we have also decided on is that, in the permawound variant the Ancient Bridge is instant death if you fall off. No save, you just immediately get a number of permawounds equal to your life.