They are strong against Rock and Fairy types, but be careful with Fire and Fighting attacks, which can break through their steel skin
Now, players rely on powerful boss monsters to stop the opponent from setting up their board, and Baronne de Fleur is one of the most powerful boss monsters ever printed
Unless you're a die-hard Spider-Man fan, skip it
There's also the option of MTG Changelings, of course
Ten mana is a lot, which is why you can also reduce the cost of it by one mana for each untapped creature you tap as you cast it
(2025-06-06) While resolving Kefka, Court Mage's last ability, the next opponent in turn order chooses a permanent they control, then each other opponent in turn order does the same