Add Graveyard


A tool such as this makes it easy to change encounters on the fly, so the DM can adjust things based on how the players are faring and whether they are having enough of a challenge. This does it make it more difficult to track the final experience reward however, as monsters are killed and removed from the combat.
I recommend adding a graveyard concept: When a dead creature is removed, it is placed in a graveyard which lists its name and experience value, and possible the system date it was killed. This will make it easier for the DM to track which monsters were involved, and which game session they were killed in so he/she can more easily reward experience.