Forum:Lycanthrope and Advanced Ritual Art

So, Lycanthrope's effect states "This card can only be Ritual Summoned with the Ritual Spell Card 'Synthesis Spell'. Does that mean that I can't use Advanced Ritual Art to Ritual summon Lycanthrope because he can only be Ritual Summoned by his respective ritual card? Someone on Dueling Network pointed that out while I was using a deck focused on Lycanthrope, and was wondering the rules on it. I'm not too experienced with ritual monsters.