Wilfred Fizzlebang does not interact with the Shaman hero power "Refresh"

Issue in title. Wilfred Fizzlebang reads “Cards you draw from your hero power cost (0)” so this seems like a potential bug.

It’s also possible he was never meant to be used in a shaman deck, which is why this wouldn’t happen (he’s a warlock class card and you’d have to get the warlock power from finley)