What's wrong with that kingdom? It looks interesting enough to me. Definitely not the "worst" kingdom I would think of. This one is just asking for a Scrying Pool deck. Once you are drawing a lot of your deck, Secret Chamber can be used for money.
Voila.
What do people consider a "bad/worst" kingdom. To me, it's a lack of useful strategic card combinations in the kingdom, basically forcing a Big Money game. My worst kingdom would be this:
Counting House
Saboteur
Feast
Quarry
Great Hall
Scheme
Village
Embargo
Native Village
Pearl Diver
Why is this the worst kingdom? It has villages, but no draw. Counting House and Quarry are there, but no +buys to support them. The lack of worthwhile actions hurts Quarry as well. Feast is there, but with crappy $5 actions. Scheme... there's nothing to scheme! And I added Embargo in there so that you could embargo the only important cards: money and victory cards.