Yay, you posted it!
ONe thing I forgot to ask - does it include playing creatures from the hand?
No, that's why I chose the word "spawned' because I don't think it should, otherwise this card is very powerful(Fractal?) but that doesn't leave many options for this card. Furthermore, I think that the options available for making creatures (via skills) can be enough to make this card balanced, and being the third shield for life, I wanted it to share a theme with light and it's Hope where Hope doesn't have many means to be useful.
Like an inverted bonewall. What a cool idea! I would also be interested to know if it spawns walls for creatures played from the hand. Also, I assume this is not using a shield slot?
It will take up the shield slot, however, it will have the same "X"s that bonewalls have, or maybe have them on the opposite side to add to the theme that it's like an inverted bonewall.