Lightbringer Cleric, Destroy Undead and Effective Clerci Level.

[Kadhel]

Hello everyone !

Today, I have a question about Lightbringer Cleric (from RavenLoft) and their power, Destroy Undead.

The rules for lightbringer cleric variant is as follow :

Destroy Undead
You can channel positive energy to destroy undead creatures.

Level: 1st.

Replaces: Turn undead.

Benefit: Instead of the cleric's normal ability to turn or rebuke undead, a lightbringer cleric can channel positive energy to destroy undead. Thus, a lightbringer cleric contributes to the destruction of undead in a fashion that interacts well with the other characters in the party such as the fighter and wizard. Lightbringer clerics want to destroy undead; thus, they despise seeing turned undead run away never seen again. At other times, a standard turning effect has no effect whatsoever, much to the chagrin of the lightbringer cleric.

Destroying undead is a standard action that deals 1d6 points of damage per cleric level to all undead within 30 feet of the cleric. The affected undead get a Will save (DC 10 + cleric level + Cha modifier) for half damage. Undead with turn resistance can subtract that number from the damage that they take from each turn attempt. For example, a vampire with turn resistance +4 takes 4 fewer points of damage each time he takes turning damage.

When using this ability against incorporeal creatures, the lightbringer cleric does not have to roll a 50% miss chance; turning hits them automatically.
Destroy undead still counts as turn undead for the purpose of meeting prerequisites for feats, prestige classes, and so forth. A lightbringer cleric can use this ability the same number of times per day that he could turn undead. If a feat requires the expenditure of one or more uses of turn undead, it instead consumes uses of this ability. Any ability that grants a bonus to turning checks instead grants an equal bonus to this ability's save DC. This is a supernatural ability.

Now, after reading this, we have a clear indicator for where to add "turning check bonus" (as per knowledge(religion) synergy for example). But what about effective Cleric Level ?

For example, if I take the item Ephod of Autority, it says :

While wearing an ephod of authority, your effective cleric level is treated as one higher than your actual level for the purpose of turning (but not rebuking or commanding) undead.

Or the item Scepter of the Netherworld

Anyone who holds the rod and has the power to turn or rebuke undead is treated as if three levels higher than his actual level when he uses his turning or rebuking power.

In standard turning, it means +1 (or +3) to turn check, but also +1 (or +3) to HD affected. It is as if the cleric is one (or three) level higher.
So, what is the interaction with Lightbringer variant ?
Does wearing an Ephod of Autority augment the DC by 1 ? Does it augments the damage inflicted by 1d6 ? And the Scepter by 3 and 3d6 ?

I summon your great wisdom here ! :)