I've been trying to create some GW monsters via the offline Monster Builder, and I'm confused. My understanding is that monsters in GW and Monster Vault are built using the "new math" introduced in the July 2010 update*. However, the damage values don't seem to correspond to the "Damage by Level" chart, even on relatively straightforward powers.

For example, the Badder Steading Guard's Mace attack does 1d10+3 damage, not 1d8+4. I suppose that the average value for both is 8.5; still, the d10 is completely absent from the Damage by Level chart, so its inclusion here is a puzzle. What's more, 1d10+3 is the suggested damage for a 1st level monster created via the Monster Builder, which (I presume) uses the old math.

My presumption is that creating monsters is more art than science, yet even with that caveat in mind, I'm unsure which values I should be using as a base.

For example, the Badder Steading Guard's Mace attack does 1d10+3 damage, not 1d8+4. I suppose that the average value for both is 8.5; still, the d10 is completely absent from the Damage by Level chart, so its inclusion here is a puzzle. What's more, 1d10+3 is the suggested damage for a 1st level monster created via the Monster Builder, which (I presume) uses the old math.

My presumption is that creating monsters is more art than science, yet even with that caveat in mind, I'm unsure which values I should be using as a base.

**Is it just me, or does the errata need errata? The "Monster Statistics by Role" chart seems to have given the Lurker's +4 initiative bonus to the Soldier, and the Brute has a nonsensical "-+2" initiative bonus.*