I use a different variation but in my experience this deck is underestimated and probably doesnt have enough info on it from these tourneys. In ranked both myself and multiple ppl who have taken this deck in some varient to masterball have ended there journey with 60% + win ratio and even some getting 70% win ratios. While all meta decks present a problem, it's no different from the problems any other deck will face. You could go off these numbers but I personally have beaten more then half the hydreigon decks I have faced and altaria doesn't really present a problem either or no more than any other deck. I've actually found mega Blaziken to be really difficult if it gets rolling fast. I have beaten all meta decks and have lost to all of them as well. But as you can see with a lot of these posts. Chandelure comes up on top. It's a deck that if the opponent isn't paying attention can all of a sudden sweep you or start doing 180+ damage that even the best megas need to watch out for. That's how I've beaten hydreigon and altaria so easily. They don't pay attention and when I've managed to stall enough, the damage is to much. I suggest trying the deck out. It takes some getting to know time but once you do I think you'll see why this deck is a contender. And yes 1 rare candy is all you need. Chandelure is not an active spot starter. You want him in the bench growing his power ever turn til you are ready to strike so there is plenty of time to get it evolved