Angrath, the Flame-Chained, while not a vampire planeswalker, is useful for draining opponents life totals around the table
Whether that means getting the best Commander precon or stocking your deck with the best EDH cards, sometimes strategy is the fun part
Helga Sinclair, Femme Fatale Devil in a green dress One of the villains from the sci-fi film Atlantis, Helga Sinclairs cutthroat nature is on full display in her debut into Lorcana
I can see 5 specific instances where it works with just the 2 (or 3) cards listed: Argothian Elder + Pemmin's Aura + (to start) Argothian Elder + Freed from the Real + (to start) Krosan Restorer + Pemmin's Aura (with Threshold) + (to start) Freed from the Real + Krosan Restorer (with Threshold) + (to start) The remaining combos listed seem like you would have to combine the two combos together to get it running
Red has a strong discard outlet machine in its many looting effects, while black mages usually can dump their hand for free if they need
It is disturbing on all the levels