The supplied video description lists a new Electro Wizard Hero and a new Electro Giant Evolution for Clash Royale. It does not give their abilities, requirements, or release timing.
Before changing your deck around either card, look for a fuller announcement with those details.
Free Clash Royale Codes
Current active codes and how to redeem them.
James Brown
James focuses on Android gaming on PC, emulator setup, controls, performance tuning, and practical troubleshooting for longer play sessions.
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69 players commented on this guide.
I wish I had read this before upgrading the wrong thing.
This helped me understand heroes much better.
The explanation is clear, especially for beginners.
This guide answered the exact question I had.