Hedkrakka's Madmob is the new Ork mob coming for Direchasm. If you're looking to get these new savage Orks, you'll want to check out this preview. They've got their stat cards as well as the deck of cards that they come with as well.
From the article:
Hedkrakka’s Madmob is available to pre-order from Saturday, so we’re showing off ALL of the cards that come with the latest Direchasm warband and focusing on a few of our favourites.
As we saw in our recent chat with Warhammer Underworlds’ lead designer Dave Sanders, Hedkrakka’s Madmob is a flexible warband, capable of dishing out damage, casting spells, or jumping onto objectives. They were also brought to Beastgrave thanks to a talking snake, but nobody’s perfect.