I believe I found a bug with the Sihedron Medallion and Amulet of Life where they are not properly reducing combat damage. I fought Rogors Craesby with Sajan and lost the second combat check by 5. I had a locked symbol on the Sihedron Medallion so it wouldn't reduce damage by 4. I ended up having to discard my whole hand. I had a similar situation occur with the Amulet of Life.
The rules say if a card reduces damage with no type listed, it reduces all types of damage.
Sihedron Medallion - discard this card to reduce damage dealt to you by 4.
Amulet of Life - discard this card to reduce damage dealt to you by 3.
Love the game so keep up the good work. Thanks for looking into this issue.