It's entirely possible for someone to convert it and then have no way to get it back, so it's important to have SOME method to reclaim it.
More importantly, though, it can now be Glossy. Don't think that was possible before (maybe it was one of those limited-time Card Trader upgrades at some point, IDK).
you people complaining about this not working did you actually leave room for the sisters on the board? This isn't a tribute summon you need an open space for the card. Also if you were dueling the vagabond he has a no special summons challenge and that could be causing the problem as well. I've used this multiples times and it works fine.
I am having the same problem. I have Harpie Lady on the field, and Harpy Lady Sisters in my hand/deck, but I'm unable to activate the spell for some reason. There are no effects on the field preventing me from using it.
I have Harpie Lady on my side of the field and Harpie Lady Sisters and Harpie Lady 2 in my hand and deck respectively but it's just not working. Anytime I try to use it the only option is to set it. How do I make it work?