Feuer Main Query

// WP_Query arguments
$args = array(
	'post_type'              => array( 'lichtkarte' ),
	'nopaging'               => true,
	'orderby'                => 'rand',
	'meta_query'             => array(
		array(
			'key'     => 'card_element',
			'value'   => 'Feuer',
			'compare' => '=',
			'type'    => 'CHAR',
		),
	),
);

// The Query
$fire_main_query = new WP_Query( $args );

// The Loop
if ( $fire_main_query->have_posts() ) {
	while ( $fire_main_query->have_posts() ) {
		$fire_main_query->the_post();
		// do something
	}
} else {
	// no posts found
}

// Restore original Post Data
wp_reset_postdata();