4 earth for a non perfect PA???
Anything that removes the critter from game also removes the protection.
The only benefit is to be able to move protection, in one card's cost.
I think 2 or 3 earth would be enough, you can have only one of these in the game, that is balancing enough.
Its 2 attack is covered by its huge initial cost.
You could raise its defense a bit, about double?
Or its attack, the picture shows a terrible monster. Or maybe it is only an inch in size