One of the worst druid cards released in a long time. Too expensive (needed to cost 2 to be playable,) too slow and too weak to silence and single target removal.
It would be busted if it cost two. Divine Spirit costs two and doesn't draw you a card, plus you need the minion to be on board before buffing it, where it can be damaged or killed if you can't do it on the same turn. This card draws and buffs the minion while it is in your hand.
We will probably never know, but Divine Spirit buffs whatever you want, and is only played for the amazing synergy with Inner Fire. This is essentially a single target, half random handbuff card, and we should know how broken those have to be to be playable by now...
Might be playable in a Rush Beast Druid, as rushing beasts would let you recover from such a huge tempo loss. Really, Stampeding Roar could be the only saving grace of this card. Otherwise extra health doesn't prevent Polymorphs and Executes, so is mostly irrelevant, if you couldn't capitalize on it on the same turn.