True Dracos

Each one of the "True Kings" have a non-targeting banishing effect that is applied if the Attributes of both monsters destroyed for its Special Summon match its own Attribute. Additionally, they activate a different effect that triggers if they are destroyed by a card effect, interacting with a Wyrm monster with a different Attribute from its own.

Their boss monster is "True King of All Calamities", a DARK Rank 9 Xyz Monster whose effect turns the Attributes of all monsters on the field into a declared Attribute, while suppressing opposing monsters of that Attribute from activating their effects and attacking. It also allows its controller to destroy opposing monsters in the Summoning process of the "True King" monsters.