[MTGDarkness]

k. Either way, I got it. My solution was to edit the function explanation itself into the class_bbcode_alt.php file, then drop this as a plugin into BBCode_fetch_tags:

			$tag_list['no_option']['mana'] = array(
				'callback' => 'handle_bbcode_manacost',
				'strip_empty' => true,
				'stop_parse' => true,
			);

Then again, I'm probably doing something stupid or missing something. Thanks for the help though.

Oh wait. There is one thing left:

How can I add a clickable image for it like I would a normal bbcode?