After blockers are declared and before the damage step, each player gets priority, allowing them to perform instant-speed actions
Of course, as I always say, a card is only as good as the context that surrounds it, so if there are not that many good fighting attackers, Barbaracle wont be as strong but I honestly think it is a fantastic option that immediately makes new fighting types a greater threat
Its attack can potentially do massive damage (especially combined with Hypnotoxic Laser and Virbank), and the Ability can be a bit trollish at times, but I think it will have to wait until the next set to make much of an impact, as it is in Japan
To keep things simple, I use the price on Scryfall in USD, which pulls from TCGplayer.com
What are the weaknesses and retreat cost of this Sylveon ex card