This REQUIRES blocks. I suggest you make a system where it tracks everyone, below:
Then, take all the properties with coordinates that you want (the ability you’re talking about may or may not have a max limit, but make sure it does) over to a new block.
You subtract the player who’s using the ability’s coordinates by everyone else’s, and set a max radius of the area damage (done with two variables).
If the other player’s coordinates are greater than the negative radius (range to the left) and less than the positive radius (range to the right), then a channel is notified and that player is damaged.