A 5 'cube will usually have a single target if you're not using a grid. DMG249 has a table with suggestions on the number of hits in a region of effect; this value works out to be one objective for a 5 'cube. "If opponents stand shoulder-to-shoulder, it comes under the "add or removes goals on the basis of how bunched they are." Nonetheless, the GM is calling for justice. The response is ambiguous if you're using a grid, possibly one or two points. DMG251 states that you choose as an origin an overlap of squares/hexes, which implies that with a 5 'cube (with 1/4 of the cube in each square), you can overlap a maximum of four 5' squares. The response is ambiguous if you're using a grid, possibly one or two points. DMG251 states that you choose as an origin an overlap of squares/hexes, which implies that with a 5 'cube (with 1/4 of the cube in each square), you can overlap a maximum of four 5' squares. It also states that it impacts a square if it occupies at least half of it in the event of a circular impact. Cubes are not spherical, but the inference I see is that two adjacent 5' squares can be influenced by a 5 'cube at maximum.