Isn't this too similar to Warden?
It's modeled on Warden, yes. However, Warden is strictly a defensive card. With the 3 attack this card can serve as a small source of offense. It also can provide a bit of removal along with stalling creatures. Also, it can grab flying creatures attacking from the treetops.
It's like a Warden on steroids, and has a casting cost and activation cost to reflect that.