yea there is zero hope for the card as it is. hunting grounds provides a +3 card hand, your card will provide +5, but it's more expensive and it trashes itself, which is huge. if you use it and then buy a province, you basically used a turn to upgread a 7$ card into an 8$ card, and it's unusable for an engine, because it's a one shot.
if you want to make the concept work, you could just make it +8 or something instead of +6. dunno if that's good, but it's better than this version