RigaMortus said:
Ok, a Standard Action = an action (or activity) + a Move
Death Blow = a Standard Action CDG
Right, and you get a Move or MEA with a Standard Action.
If what you are saying is true, that Death Blow is a standard action by itself, then that means you do not get an action (or activity) OR a Move BUT you do get to CDG. So what is the difference between Death Blow and a regular CDG? Neither one will allow you to move or take any other action except the CDG. So there is really no benefit.
Please don't tell me you are serious. Is your understanding of the English language really that tenuous?
You can no longer "move" to someone and CDG them with Death Blow because the Move is part of a Standard Action. But since Death Blow is a Standard Action "by itself" then that means you can't do anything else BUT Death Blow.
What you are describing is a Partial Action, not a Standard Action. (Partial = Move
or action, Standard = Move
and action.)
Death Blow allows you to do a CDG as a standard action, which means you can move and CDG. Normally CDG is a full round action, which means you can only 5' step and CDG.
A single attack by itself is not a Standard Action. You can use a Standard Action to make a single attack, or you can use a Full Round Action to make a single attack, or you can make a single attack as an AoO, or gain an extra single attack using things like Cleave or Expert Tactician.
Since Expert Tactician only gives you a single extra attack and not a partial action, you cannot replace the single extra attack with a Death Blow. There are things that you can replace a single attack with (Trip, Disarm, Sunder), but a Death Blow/CDG is not one of them. That is why you would need Haste.