SELECT "Promotion" FROM table_10593 WHERE "Venue" = 'the arena' AND "Event" = 'legends of the arena'
What is the promotion when the arena was the venue and the event of legends of the arena?
CREATE TABLE table_10593 (
    "Location" text,
    "Venue" text,
    "Promotion" text,
    "Event" text,
    "Inductee(s)" text
)