How to create more than 1 table in Migration?

Yes, migrations can do multiple DB modifications (add tables, drop tables, add indexes, etc).

It is not considered bad form. Migration is a collection of steps necessary to upgrade/downgrade your database to the next/previous format, respectively

Schema::create('users', function($table)
{
$table->increments('id');
});

Schema::create('rights', function($table)
{
$table->increments('id');
});