Drifloon Rocks
Honey, please don't eat the rancid dung.
Personally, I would rename a few of the types for various reasons.
Grass- Plant
Grass is only one kind of plant. I think Plant-type makes more sense.
Steel- Metal
As with Grass, Steel is only one kind of metal, and there are many Pokemon that are Steel-type, but based on another metal, such as Bronzor, the Bronze Pokemon.
Ghost- Spirit
Okay, so this one's a little sketchy. I just think it would make a little more sense seeing as Ghosts are dead, but spirits aren't necessarily.
???- Unknown
I just think a word makes more sense as a type name than punctuation.
Grass- Plant
Grass is only one kind of plant. I think Plant-type makes more sense.
Steel- Metal
As with Grass, Steel is only one kind of metal, and there are many Pokemon that are Steel-type, but based on another metal, such as Bronzor, the Bronze Pokemon.
Ghost- Spirit
Okay, so this one's a little sketchy. I just think it would make a little more sense seeing as Ghosts are dead, but spirits aren't necessarily.
???- Unknown
I just think a word makes more sense as a type name than punctuation.