There are several instances where I noticed people use に to mean something along the lines of "and". Here's an example: https://youtu.be/3cjyUg-XjjU?t=24
I think the narrator says, "修理人が使う道具は、牛の皮、ハンマーに、庖丁と呼ばれる[刃も?].
Also, a line from a manga that describes a superhero reads、
その能力はスーパーパワーに ビーム・バリアー 飛行能力に回復力
The に in question is the one in the third line.
I've searched all over the web for something that explains this usage, but I've found nothing. Does anyone what it is?