Feat Divine version of arcane admixture?

[Llamas Notsheep]

I was bummed to see that Divine Power doesn't have a feat corresponding to Arcane Admixture. What do people think of house-ruling one?

Arcane characters have the option to really specialize thanks to this feat, as well as to limit their weakness against resistant enemies. Pick a fire power and tack on cold and you'll be able to enjoy your cold-related feats, as well as have a means of attacking cold-resistant enemies without having your damage output completely crushed.

Here's the text of AA, from the compendium:

Arcane Admixture
Paragon Tier
Prerequisite: 11th level, any arcane class
Benefit: Choose one arcane power that you know, and choose acid, cold, fire, lightning, or thunder. The power now deals that damage type in addition to its normal damage type and gains that keyword.
Each time you gain a level, you can choose to reassign either the power to which this feat’s effect applies or the additional damage type applied (or both).
Special: You can take this feat more than once. Each time you select this feat, choose a different power. You can’t apply this feat to the same power more than once.

Here's what I was thinking in terms of an adaptation:

Divine Empowerment
Paragon Tier
Prerequisite: 11th level, any divine class
Benefit: Choose one divine power that you know, and choose fire, necrotic, radiant, or thunder. The power now deals that damage type in addition to its normal damage type and gains that keyword.
Each time you gain a level, you can choose to reassign either the power to which this feat’s effect applies or the additional damage type applied (or both).
Special: You can take this feat more than once. Each time you select this feat, choose a different power. You can’t apply this feat to the same power more than once.

The four keywords there are the most common ones for divine powers, from looking around a bit. They also seem to be the ones the designers most closely associate with the divine power source, as indicated by the Anointed Champion 11th level feature in divine power (if you anoint your weapon, you gain resistance to fire, necrotic, radiant, or thunder).

[aco175]

I see no problem with it. I tend to judge a power or feat in terms on not being able to live without it. Since it affects only one spell, I see it as fine. I may even go as far as allowing another spell to be chosen after en extended rest.

[Starfox]

I want one as a player, but I still don't think you should make one - it is part of what makes arcane characters special.

There is a paragon path for invokers that makes all your attacks thunder at level 16 - Divine Orator?

[NotAYakk]

If I wanted this for Divine classes, I'd make '2nd tier' domain feats that add in a thematically-appropriate damage type to a chosen power, instead of the more generic one that arcane classes get.