Is diablo 3 out yet
For every class we essentially created three common types of abilities, and then a handful of class-specific ability types. All classes have skills that fit into categories we call Primary Attack, Secondary Attack, and Defensive. Primary Attack skills are frequently used abilities that typically generate resources. Secondary Attacks are more powerful attacks that are limited in use through resource cost or cooldown. Defensive abilities are used to escape or control the flow of combat. Beyond that, classes have unique categories, like armor spells for the wizard or mantras for the monk. We used this methodology to help us design the classes and their skills, but we weren’t exposing this to the player despite the fact that these categories would give the player, like they did our own team, a better understanding of how the classes work.
We have tons of unique death types, the exploding palm effect you're talking about though is an effect of the skill itself though and not the makeup of the creature it's used against.
When you apply the bleed-DoT from Exploding Palm a beating heart appears over the creature it's applied to. After they take enough steps or are otherwise killed the heart explodes and deals AE damage. So it's not actually the skeleton exploding (although that happens too) that's causing the blood effect, but the skill itself.
