How do I make a damage script for a sword?

I'm still very new to scripting, so, apologies if this is simple. I made a custom sword in blender and have a custom animation, but I cant figure out how to script it to do damage when swung (only when swung). Any help would be greatly appreciated.

Make a touched event and then make it find the humanoid and make it take damage. There are many tutorials on YouTube for this.