Ob Nixilis, the Adversary (Borderless) Foil

Casualty X. The copy isn’t legendary and has starting loyalty X.
[+1] Each opponent loses 2 life unless they discard a card. If you control a Demon or Devil, you gain 2 life.
[–2] Create a 1/1 red Devil creature token with “When this creature dies, it deals I damage to any target.”
[–7]: Target player draws seven cards and loses 7 life.