Ok I am new here, but I thought I might mention this.
I used fusion birth, and dark blade went to the graveyard, but
I wasnt given the option to summon Dark Blade the Dragon Knight.
Also I tried it with the Legendary Knights too, and it doesnt seem to
work. Sorry for bothering everyone, and I also apologize if this is a repeat
thread, but I didnt see anywhere that had this topic.