Regarding this problem, I'm assuming you want it to be something like this.
<span style="font-size: 9px">Knowing that you're still learning GUI, I used only a buffer ability (Shadow Strike) and a simple damage detection to make it work! ^ ^
Currently, it has a bug, but I think you can learn something from it. I'm too lazy too put comments. I'll just explain it to you if you want to understand something!</span>
Hey now! Don't ignore me!