How do I tile a sprite?

Hey! Me again looking for some help.

I have a rotating flame, it works like a 'laser' that changes in width with collision, however unless my fire is plain in color, it looks awful because it gets stretched out. Of course, it's a sprite and that's how it works.

I thought about using a tiled background and putting it on top but those can't be animated so now I can tile but is static.

Any help, ideas or videos on how to do it? It's hard to search cause I keep getting tiled background stuff when I use the word 'tile'

If there's a whole different way of doing what I intend it would also be useful, this is what I could come up with but I'm open to starting over with this object.

I leave 2 gifs, one plain and one with just random lines, which I would like to be tiled instead of stretched, this way I could give it a fire effect

I can think of two ways to do this -

1. Make a long sprite. Don't change its width. Instead, put a mask sprite with Destination Out blend mode on top of it to "cut off" the part of the laser beam which should be invisible.

2. Use a TiledBackground object. You can animate it with events, see this example:

dropbox.com/s/ja8ator97sskcur/AnimatedTB2.c3p