Including at least one character from specific Unicode sets (like Japanese or Korean) can change the entire font style of your Battletag.
Players often use special characters to trigger a unique "thin" or "wide" font effect for their names:
You can use specific codes in Overwatch chat to change colors or insert game icons:
If you want to generate audio from text using Overwatch character voices:
Community-built tools on Reddit allow you to generate code for gradient-colored text palettes. 🏷️ Styled Usernames (Battletags)