Concealment and Coup de grace

[TheGogmagog]

Is there anything preventing Coup de grace when there is a miss chance. This was from magical darkness 20%, but could be applied to Blur or even invisibility.

It came up in a recent game, and didn't really matter, but got me wondering on what the rule should have been. The player argued he touched the magically sleeping creature and carefully applied his knife, the same if the creature were held. And argued ther shouldn't be a miss chance (and also added sneak attack damage which I'm now positive is beyond the rules).

 

[SlagMortar]

The only rule regarding concealment and coup de grace is for total concealment:

You can deliver a coup de grace against a creature with total concealment, but doing this requires two consecutive full-round actions (one to "find" the creature once you’ve determined what square it’s in, and one to deliver the coup de grace).

For partial concealment, I guess you'd have to pick whether it was one round or two.

 

[Dross]

The only rule regarding concealment and coup de grace is for total concealment:


For partial concealment, I guess you'd have to pick whether it was one round or two.

given this reply, the implication is that anything other than total concealment doesn't really matter since it is not spelt out.

For the OP. I'm sure in the PHB about CDG there is a statement about sneak attack being added (I remember the statement "It's probably overkill but...."). However, concealment negates SA, so an invisible victim of a CDG doesn't get SA damage per the RAW (unless i've missed something somewhere).