The concept is nice, but you're basically giving both players infinite blockers. This would be so good in any control deck just for the ability to pump out tokens. Maybe if the tokens couldn't block.
This really isn't infinite blockers. It's one chump blocker per turn, which is pretty much the same combat effect as Wall of Denial, except that Wall doesn't feed your opponent. That really doesn't strike me as overpowered.
It also gives mana, costs no mana, and cannot be countered, to me it's still a little too good of a defensive card.
Would also be pretty nice against stacks. Sure you don't with the permanent war, but it gives you time VS Lodestone, it gives you stuff to tap to Wire and helps you get out from a lock by being an easy way to pump mana.