How do you make other Civs be able to cast Feast

So Ive been tinkering with trying to get another Civ to be able to cast feast, but it looks like its hard coded to only allow the Calabim to do it. Ive changed the Civilization prereq in the FFH editor to other teams such as the Svarts, but even in game, with a unit with vampirism, sitting in a city, the option to cast is not available. Surprisingly i can still gift vampirism and feed on bloodpets.

So even if, say, the elohim took over a vampire city with their Tolerant trait, after building a vampire, the vampire wouldnt be able to feast on any towns.

Any ideas on how to fix this?

 

Open C:\Program Files (x86)\Firaxis Games\Sid Meier's Civilization 4\Beyond the Sword\Mods\Fall from Heaven 2\Assets\XML\Units\CIV4SpellInfos.xml in a text editor like Notepad or Notepad ++

Find the Feast spell

Code:

        <SpellInfo>
            <Type>SPELL_FEAST</Type>
            <Description>TXT_KEY_SPELL_FEAST</Description>
            <Civilopedia>TXT_KEY_SPELL_FEAST_PEDIA</Civilopedia>
            <Help>TXT_KEY_SPELL_FEAST_HELP</Help>
            <PromotionPrereq1>PROMOTION_VAMPIRE</PromotionPrereq1>
            <CivilizationPrereq>CIVILIZATION_CALABIM</CivilizationPrereq>
            <bAllowAI>1</bAllowAI>
            <bInBordersOnly>1</bInBordersOnly>
            <bInCityOnly>1</bInCityOnly>
            <bDisplayWhenDisabled>1</bDisplayWhenDisabled>
            <bHasCasted>1</bHasCasted>
            <iChangePopulation>-1</iChangePopulation>
            <PyResult>spellFeast(pCaster)</PyResult>
            <PyRequirement>reqFeast(pCaster)</PyRequirement>
            <Effect>EFFECT_SACRIFICE</Effect>
            <Sound>AS3D_SPELL_FEAST</Sound>
            <Button>Art/Interface/Buttons/Spells/Feast.dds</Button>
        </SpellInfo>

Delete the line <CivilizationPrereq>CIVILIZATION_CALABIM</CivilizationPrereq> from that entry (it should be around line 1233)

Save the file.