Affect me

affect_me(player, card) Returns a boolean value.

Use this code when checking triggered events (comes into play, leaves play, etc).

This function will see if the card that triggered affects this card or not.

For example, Kokusho will use this check in the go the graveyard event, since the ability should only happen when Kokusho goes to the graveyard.

Disciple of the Vault, however, triggers on other cards going to the graveyard, so the affect_me call is not used.