What's the WORST Balance Change in Clash Royale History?

Its easy to blame Supercell for bad balance changes, since there's such a big audience to impress. But sometimes, its hard to defend Clash Royale when they make appalling decisions in terms of balancing cards. But have you ever wondered what is the worst balance change in Clash Royale history? In this video, I hope to truly answer that question to find out truly what is the worst buff/nerf a card has ever received in Clash Royale history.
Credits:
Yasunori Mitsuda for the music
C418 for some of the music
‪@orangejuice‬ for some of the clips
‪@ErnieC3‬ for some of the clips