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_82 ( ihsaa_class VARCHAR, _number___county VARCHAR, mascot VARCHAR )

### Question ###
Name the IHSAA class with county 18 delaware and tigers mascot

### Accurate SQL ###

SELECT ihsaa_class FROM table_name_82 WHERE _number___county = "18 delaware" AND mascot = "tigers"