Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_4 (promotion VARCHAR, venue VARCHAR, event VARCHAR)

### Question ###
What is the promotion when the arena was the venue and the event of legends of the arena?

### Accurate SQL ###

SELECT promotion FROM table_name_4 WHERE venue = "the arena" AND event = "legends of the arena"