recipes.removeShaped(<xreliquary:magicbane>);

recipes.addShaped(<xreliquary:magicbane>,
[[null, null, <materialpart:promethium:ingot>],
[<contenttweaker:strings_crystal>, <materialpart:promethium:ingot>, null],
[<materialpart:sacrifice_metal:ingot>, <contenttweaker:strings_crystal>, null]]);