We recently played an encounter where an empty space was targeted by a blast attack. This is contradictory to the rules but there is an argument that can be made for it. At one point in the rule book it states that a player may only target a space with a monster in it. At another part it says that any hero with a ranges weapon can target any space with line of sight, any being in bold. So which is it??

So by that argument, because the word "adjacent" is bolded for melee attacks, you can attack empty adjacent spaces (for surge-usage) . Any and adjacent are limitations on which spaces the attacks can target, adjacent only for melee, any in LOS for ranged, but target space must still contain a monster.

"A figure making a Ranged attack may target any figure in its line of sight

Ok thanks one of my friends was playing with the blast being able to target empty spaces and it was killing the overlord

Ok thanks one of my friends was playing with the blast being able to target empty spaces and it was killing the overlord

ha-ha i kicked his butt

Probably one of the reasons we won the campaign… that and the fact that we searched almost every single token