I don't think it fits, to be honest. It doesn't give you card advantage until you cycle it four times which, in some matches, you certainly won't have time to do. It also costs 8 mana to cycle it four times, so it's not even efficient at that point even if spread out. It doesn't fit the tight Jund guidelines of card advantage and incremental advantage.
I would definitely go with the other selection of cards.
April 21, 2020 6:55 p.m.
If you play black there are plenty of better options than Skred - unless your meta is overrun by Veil of Summer.
Fatal Push, Murderous Cut, Sinister Concoction (in casd you want to kill emrakul), and at 2 mana you havd cards like Dreadbore, that kill walkers too, exile effects to make things really dead and make sure that Wurmcoil Engine doesn't spawn its nrood when it dies like Epic Downfall.
Honorable mention goes to Tragic Slip.