This is the New Warlock Card Imp of Malchezaar. As you can see it was a Chinese reveal and I’ve picked up the card and translated it so it may change a little.
This is an obvious inclusion in an aggressive Zoolock deck with card discard minions and spells such as Doomguards and Soulfire.
The card text reads: Whenever you discard a card, draw a card. Basically, this card cycles cards for you so you don’t end up with an empty hand bu discarding quicker than you can draw.
I can see this card seeing play in some aggressive decks with lots of discard mechanics. There may be more cards to follow that synergise too, so this is definitely an interesting card.