Ummm.. like uhh.. in general god items is useless. Godding rares also make them useless or drops it values.
If you enchant your grass then you can't sell it in a TradeShop, making it more difficult to sell and usually enchanted items are less valuable than none enchanted ones. It's not useless if you are using it for terraforming as it doesn't effect it.
Hahahahah.....i had the same problem too...i asked TheEpicEmerald to god my 9 stacks of grass... and the next day i want to shops and nobody accepted my god grass...even trade shops too!,remember if your money are godded then are useless...and then Jimalexblack came to my island and traded 8 stacks of normal grass for 8 stacks of my god grass.... :3
It's not. You can still hit mob with it Make it dirt for your farm, or place it for decoration. Those who are terraforming will buy it of at normal Prices if you ask kindly
God items are pretty much useless as well, same with grass I guess. /enchant all is bad for tools by the way, if you ask a Skygod to do separate enchants, your tool is more powerful, pro tip from Me