How could I make something that sort of like poisonous gas that gets closer once every five minutes?

[NavyCatZ]

How to make a "moving" poison fog [🟨]

You know in brawl stars and other games, they have this poison fog that slowly swallows you up? Well, today I’ll be showing you how to make one! Why Make One? Materials Step 1: Making the boundaries Step 2: More fog! Step 3: Advancing the fog Step 4: Additional Information for Step 3 Step 5: "Poison" Step 6: More Poison! After all this hard grueling work, you’re done! Other notes: Instead of using wires, you can use channels This is my first guide! There is (most likely) a cleaner a…