Explain why Wheel Lock is OP

I would say a lot of it is also in that warlock has cards that don’t require a deck as well as things like shredding the deck for damage via waste remover, etc. So it has more ways around not having one to make survival viable for said turns, even with a useless hero power. As has been said aggro destroys it but control decks are destroyed by it as it’s faster than them.