Reason for Semi-Limiting:
Change of Heart was originally a limited card (only one copy allowed per deck) for a long time due to its powerful effect. The card allows you to take control of your opponent's monster, potentially giving you a huge advantage in the game.
However, over time, the game has shifted and new cards have been introduced that have made Change of Heart less impactful. As a result, the card was moved from limited to semi-limited in 2019.
It's important to note:
* The banlist for Yu-Gi-Oh is constantly updated, and cards can be banned, limited, or semi-limited at any time.
* The current banlist is available on the official Yu-Gi-Oh website.
If you are unsure about the status of a specific card, always refer to the official banlist.