Nice artwork.
With Spike Armor, high HP and low retreat, it's worth it for that. I don't know if people would be that patient for Poison Spike (nice attack, though), as it takes some time to power up. But with the Spike Armor as a deterrent, I wouldn't worry too much. Nice Water weakness, as it's usually Grass with 'Slash.
I made a rhyme. Hah.
9/10. Definitely one of the more unique Ground cards I've seen in a while.