Hearthpwn

A very fun card if the opponent has a number of low health minions who can all be cleared out in one turn, going backwards and forward between the minion and weapon version.

Fantastic card for Big Warrior

This is the weapon version

Now where's that card that switches weapon attack with durability???

Yes, weapon version of the card is on Home page and directs to this thread, but not present here, which is expected. Weapon card is not collectable and won't be present in Juggernaut pull I assume as similar weapons generated during game.

"This card starts as a minion, then swaps to a weapon after attacking, which can also attack immediately… and back and forth it can potentially go." (c)
So raw best you can clear 3 minions with <= 4 health each, per turn you played this card. (Or one with <=8 health, and one <=4 health). Very similar to Crabatoa, but can be buffed as weapon or minion, which improves card a lot, even with +1 attack minion buff from new location card.(5 attack, 3 times one of them can also go face :3)

I'm assuming when it's Equipped, it'll have an effect to go back onto the board to Rush in again, otherwise you could get a weapon with up to 10 durability which would be a little silly

Yep, i believe too. Since it has rush, you can do 12 damage (4 on rush, 4 on attack with hero, 4 on rush again).