Like in Kobold fight club, use colors to indicate the difficulty levels, but use those colors to highlight some creatures in the list to show that if you add 4 of this level, it will be considered a moderate encounter, same deal for severe, extreme, etc...
Like in Kobold fight club, use colors to indicate the difficulty levels, but use those colors to highlight some creatures in the list to show that if you add 4 of this level, it will be considered a moderate encounter, same deal for severe, extreme, etc...