One of the best Grixis cards, even decks packed with card draw are hard-pressed to keep any resources in hand against this planeswalker, as you eat two a turn while incidentally impacting recursive effects
Or what about Horror Energy which provides Psychic Energy but also damages an attacking Pokemon too
However, I think its pretty fancy and shows a certain level of skill if you hold cards that allow you to counter Vigilance when required in your deck
There's a small window for opponents to break even on card advantage, and after that window closes, your deathtouchers, sacrifices, and regular combat turn into so much value that very few black decks should go without it
For basic Pokemon that fit that criteria, Buddy-Buddy Poffin is essentially a guaranteed, targeted draw