Spell sacrifice says it should take half population and turn them into mana.
<Description>Target city sacrifices half its citizens to produce 1 mana per sacrifice.</Description>
In actuality, it kills all the population and returns 0.5 mana per killed. The problem is this modifier
<GameModifier>
<ModType>City</ModType>
<Attribute>Sacrifice</Attribute>
<StrVal>Mana</StrVal>
<Multiplier>0.5</Multiplier>
<Calculate InternalName="Calc" ValueOwner="TargetCity">
<Expression><![CDATA[[CityPopulation]]]></Expression>
</Calculate>
<Calculate InternalName="Value">
<Expression><![CDATA[[Calc]]]></Expression>
</Calculate>
</GameModifier>
which should be
<GameModifier>
<ModType>City</ModType>
<Attribute>Sacrifice</Attribute>
<StrVal>Mana</StrVal>
<Calculate InternalName="Calc" ValueOwner="TargetCity">
<Expression><![CDATA[[CityPopulation] / 2]]></Expression>
</Calculate>
<Calculate InternalName="Value">
<Expression><![CDATA[[Calc]]]></Expression>
</Calculate>
</GameModifier>
