I am running a Plant Synchro Yugioh Deck & should I side in Vanity's Fiend?

So I am working hard on building my side deck for this Plant Synchro (NOT Quickdraw as I am only running 1 QD synchron)) deck I've been working on. Basically I was wondering if I should side in Vanity's Fiend. The reason I'm questioning this move is because, although it is good against a majority of decks, it basically shuts down my entire deck. Good choice, bad choice? I need help :/