Something that people love to play, but doesn't help them win.Leeroy - high play rate, is used as a win-condition, deck isn't that good nowadays, but it was good in the past.Jaraxxus - Reasonably common in Warlock decks, it is fun to use, but would be insta-gibbed by Sacrificial Pact (tech card?) and is often too slow - if you need him as a hero heal, you're probably going to die anyway.Lay on Hands - solid heal and card draw, but not enough to catch back up if you're falling behindI'm also wondering on how they'd define it - is a low win rate card one which sits in the deck, or one that gets played?
Considering nothing directly hints at the fact it is included in decks, I might as well guess that it is The Coin.
Evolve? It's a fun card but can easily wreck you, particularly with basic totems->doomsayer
Possibly since it's potentially a fun card but can often be disastrous. At least Yogg, given enough spells, has a better chance of averaging out to a good result.
I think that none of the "playable" cards should be called the worst. Maybe some cards are pretty bad but you still can put them in the deck and have some fun. Worst cards are just unplayable with no reason to put them into your deck like Frostwolf Grunt or Millhouse.
I think it might be Patient Assassin.
It's Ancient of Lore. After the nerf, the card was dead. Grand Crusader is a 6 mana 5/5 neutral that adds a random paladin card to your hand. I'm aware Grand Crusader isn't the same, but it's a fairly similar effect, for less mana.Ancient of Lore is a 7 mana 5/5 class card (meaning higher budget than similar neutrals) that draws you a card. You're paying 2 mana and a stat point to draw 1 card, on a class card.
I think is the worst card in the game.