Recently, I was playing with some different datapacks. We were wondering if there was a poisonous gas datapack. A gas that does damage like poison damage and some extra damage so it does actually kill you. So after some searching we couldn't find anything already existing so I am now requesting a datapack for this if someone is willing to help us with this.

Features:
- A block which produces the gas and an x by x (5?) area is covered with this gas
- This block is possible to be crafted (some cobble, some obsidian and totem of undying?)
- This block needs a fuel (end rods or chorus fruit?)
- This block can be turned on and off with redstone running in to it
- The gas gives you the poisoned effect (for like 30 seconds?) and gives you extra damage so it does kill you when you are in the area of the poison

Thanks in advance!