This card is unspeakably bad. I'll just be blunt about it. The stat distribution is horrible. Paying 6 mana for a 7/4 is not what you want to be doing, but the real kicker is that the card does nothing when played and the card's text is useless at times. The Hearthstone meta is way too fast for this, especially in Wild. Cards need to have an effect when they're played if you're sacrificing a body like this.
Joust is looked at as the overall worst card ability in the game, and this card revolves around it entirely. No one's going to care even if you get "infinite value" by playing this thing three times in a game because you're paying 6 mana for a card that can die to a 3-mana spell. Just dust this card. You won't regret it.