It has sub-grades of 9 for Centering, 9 for Surface, 8.5 for Corners and 9 for Edges
Lets illustrate this signal reading concept with an example
The Most Valuable Cards in Edge of Eternities Edge of Eternities Per my usual approach, I will primarily focus on normal, non-foil printings in the set because these are the most common versions of the card and can be found in play boosters
Twenty-five permanents
Revised Volcanic Island - PL, LP, NM Tropical Island - LP, NM Tundra - LP, NM Savannah - NM Scrubland - GD, EX Badlands - PO Taiga - PL, LP Wheel of Fortune PL (not an actual Dual Land) Foreign White Bordered Underground Sea GD (Italian) Tundra EX (Italian) High-End Reserved List and Foils The High-End Reserved List is back with a lot of its all-time favorites
Despite featuring no actual gore, Claustrophobia, the card, manages to immediately convey the horrors of being trapped in a small space with no hope of release