Camelot
Adventurer
I try using common sense when the rules aren't exactly clear, and infinitely tall columns (no offense to anyone, of course) makes absolutely no sense. I think of "squares" as "cubes" when determining blasts and bursts and also cover. For example, f you want to use a ranged attack on the kobolds, they have cover, because if you draw a line from any corner of your cube (a cube having eight corners) to every corner of the kobold's cube, at least two will be going through the platform, so they have cover (two out of eight is the same as one out of four, which is enough for cover in 2D squares). Also, if you want to blast them, you can choose any origin cube that you have line of effect to (any cube that at least one line of your cube can connect to any corner of that cube) and it expands from there.
Sorry if I make things more complicated that it really is, but in a nutshell...yeah, bursts and blasts are cubes, not infinite columns nor flat explosions.
Sorry if I make things more complicated that it really is, but in a nutshell...yeah, bursts and blasts are cubes, not infinite columns nor flat explosions.