<?xml version="1.0" encoding="utf-8"?>
<configs>
<!-- just remove it from all items -->
<remove xpath="/items/item/effect_group/passive_effect[@name='Mobility' and @operation='perc_subtract']"/>
<!-- halve it, vanilla values are 4% and 6%; value selector is needed for this -->
<set xpath="/items/item/effect_group/passive_effect[@name='Mobility' and @operation='perc_subtract' and @value=0.06]">0.03</set>
<set xpath="/items/item/effect_group/passive_effect[@name='Mobility' and @operation='perc_subtract' and @value=0.04]">0.02</set>
<!-- set all to 2% -->
<set xpath="/items/item/effect_group/passive_effect[@name='Mobility'and @operation='perc_subtract']">0.02</set>
</configs>