Minecraft shields will completely negate all front-facing attacks of up to four damage, with the shield taking damage equal to the strength of the attack if the incoming attack exceeds that value.
Minecraft shields are not upgradable, so it’s one size fits all, but they can be customised using a Minecraft banner. Want to learn how to create and customise your Minecraft shields? Shields are a state of the art defensive tool to aid in pixelated combat, used instead of blocking with swords.