This is the Silverware Golem hs New Warlock Card to be released with the new adventure One Night in Karazhan.
The card text reads: If you discard this minion, summon it. Good to see some more discard synergy and it looks like Blizzard developers have a deck in mind that uses discard mechanics.
The 3/3 body for 3 mana is base vanilla. But if you are re-summoning this card it’s good value after just one summon. Going to be interesting to see how and where this card fits in after the entire collection from One Night in Karazhan has been released.