The proportion of bad 6 drops to good 6 drops is really, really low, both in class cards and in neutrals. I went through and counted the cards that I would not want to see under any circumstances and only came up with:
Void Crusher
Corrupted Seer
Mogor's Champion
The Skeleton Knight
Windfury Harpy
Every other card is at least a 4/4 (which is obviously bad but at least isn't junkbot bad) and many other cards have extremely powerful effects. Even cards that rely on battle cries still end up being 4/6, 5/5, 6/7, etc.
It's questionable given how fast the meta is whether this card would be good enough, but if you could heal a tree, wrath and heal the tree with this, that would be a good day