Marioland
Either the quest would fail because your minions are too weak to trade out of Stealth, you get mowed down by Aggro/Tempo decks before you get enough Stealth minions out, or this finishes and you ride a broken combo that can't be stopped by anything but non-targeted AOE and is non-interactive and a pain to fight against.
It allows all sorts of broken combos that can only be stopped with AOE (sometimes). On top of that it takes Stealth to activate it, and since a fair chunk of your deck is going to be the stealth minions that you need to get it working to begin with, giving them Stealth permanently is a bit meh given how Stealth minions are generally weak due to the ability.
It's an interesting idea, but it fails to understand the problem that they fixed by booting Conceal into the Hall of Fame set and attempts to bring it back in a way that's entirely do-or-die.
It allows all sorts of broken combos that can only be stopped with AOE (sometimes). On top of that it takes Stealth to activate it, and since a fair chunk of your deck is going to be the stealth minions that you need to get it working to begin with, giving them Stealth permanently is a bit meh given how Stealth minions are generally weak
It's an interesting idea, but it fails to understand the problem that they fixed by booting Conceal into the Hall of Fame set and attempts to bring it back in a way that's entirely do-or-die.