modpack/resources/required-data/ExploreCraft-Tweaks/data/minecraft/recipes/shield.json

{
    "type": "minecraft:crafting_shaped",
    "key": {
        "W": {
        "tag": "minecraft:logs"
        },
        "S": {
        "item": "mythicmetals:silver_ingot"
        }
    },
    "pattern": [
        "SWS",
        "SWS",
        " W "
    ],
    "result": {
        "item": "minecraft:shield"
    }
}