Change Variables Value using ingame commands

[tardy carbon]

well you are changing {_value} but then do nothing with it
when you do set {_variable} to "{%{_variableName}%}"
{_variable} is just a clone of the valu inside that variable, changing one doesnt change the other
At the end you need to do the reverse at the the variable to the new value

[inland beacon]

Enable effect commands in the config then just change it as you would normally, ie !set {var} to 5