Rule 832.2.a
If a linked effect or instruction refers to an instance of Show Off, it refers to the keyword granted by the same source unless specified otherwise or there is no keyword granted by the same source. If the linked effect or instruction specifies information about the shown off card, it is linked to only that instance of the Show Off keyword. If there is no linked keyword, an ability that references showing off is linked to all Show Off keywords on the appropriate card. Example: A card reads in part “Spells you play have ‘[Show Off] a Mighty unit.’ and ‘If you showed off, this costs [A] less.” If a spell that reads in part “[Show Off] a spell with Energy cost [7] or more,” and “If you showed off, this can’t be countered.” is played by the same controller, showing off a Mighty unit will not be sufficient to satisfy both abilities that reference showing off because they refer to instances of the show off keyword granted by different sources.