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Mandatory effect

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Mandatory effects (きょうせいこう Kyōsei Kōka), also known as Compulsory effects, are effects that must activate. When two or more effects trigger at the same time, mandatory effects activate at the beginning of the Chain, and optional effects can only be activated after all mandatory effects have been activated.

Mandatory effects can be identified by the phrase "You can" in their card text. (In Japanese, mandatory effects are indicated by the text はつどうする Hatsudō suru "Activate".)

Card such as "Caius the Shadow Monarch" and "Man-Eater Bug" have powerful effects, but because they are mandatory effects, if they are triggered when the opponent has no monsters, the player must target their own cards.

Example

Petiteranodon-SR04-EN-UR-1E

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