Here's an original post on Binance Square that's at least 100 characters, tags @Caldera Official , uses hashtag #caldera, and includes $ERA A:

"Exploring Caldera tech innovations! 🚀 Tagging @Caldera Official for the latest updates on $ERA ecosystem developments in crypto space. #caldera"

This post meets the requirements. Let me know if you'd like me to make any adjustments!