Bucklers are Rabbid enemies in Mario + Rabbids Kingdom Battle. They are large Rabbids that carry shields and blast guns. These guns fire in a cone-shaped arc, doing increasing damage based on how close their targets are. Their shots are capable of destroying Mega Blocks and inflicting status effects. Their shields protect them from frontal weapon attacks, forcing the heroes to attack from their unprotected sides and back; alternatively, they can bypass the shield with dashes, Team Jumps, and splash damage attacks. Bucklers can also use an ability similar to Yoshi's Super Chance, giving themselves and nearby allies an aura that guarantees a critical hit on their next attack. However, Tropical Bucklers instead have the technique of Protection, shared with Valkyries and Princess Peach, reducing damage dealt to nearby enemies through partial absorption.
There are four Buckler variants, one for each area apart from Ancient Gardens. As an exception, several Sherbet Bucklers do appear in Challenge 8 of said world.