Mark of Nature looks even worse compared to this, especially since the Priest's hero power synergizes with health buffs better.
Though that's reason to buff the former in my opinion, not to nerf this.
The concept of a never-ending weapon is cool, but this is a terrible version of it.
I'd propose dropping the durability to one but giving it "Attacking does not cost durability."
So you're paying 5 mana to have a bottomless supply of a 2 Attack weapon unless your opponent destroys it.
Still not good, but maybe psuedo-playable in a deck that otherwise doesn't run weapons.
7 for a 7/7 is very weak, not balanced. War Golem is generally seen as unplayable, and though not to the same extant Malorne is a rarely used card as well.
Malorne sees play more from a random beast effect generating him and Druids actually putting him in a deck.
But beyond that, class cards are supposed to be a little stronger than neutrals, to give each class an edge in some areas. And Malorne is extremely weak compared to the imbalanced 7 drop that is Dr. Boom.
This card feels a like it would be balanced if the return is guaranteed or if he had a reverse joust, since the joust mechanic has a massive anti-synergy with this card.
In a deck where you have enough beefy minions to win jousts he's lackluster even if he comes back, since you'd be playing him multiple times instead of more efficient six drops.
And decks that actually run out of things to play which would like him won't win jousts nearly as often, and he's garbage when he doesn't come back.
This feels like it could really use a "Choose" function, since it is a gamble at best and a total dead card at worst.
Even if we could simply choose to draw two cards instead or something it would be much less painful to draw late-game.
This would probably be balanced at "Deal one damage to all minions."
Itself included. Essentially a 3/2 for 3 and a free one damage to everything else seems fair, and it would synergize with Rampage in wild.
As of now it's just a bit too much value for one card. Similarly Aldor Peacekeeper, another card getting a 1 mana spell for free, should probably be a 2/3.