Woops lol. I can't believe I missed that. Still, in a BG deck, you can use Lure effects on it, attracting every blocker, letting your army through. In a BU deck it will attract their removal spells, allowing you to save your counters for more important things. With artifacts you keep can equip it with enough to make it a threat, drawing more spells. It's also a decent target for bestows.

It can be a constant threat (or nuisance), allows you to repeatedly trigger ETB effects, and does all this for one mana (unless you have Rooftop Storm , then it's free). I still consider it a staple.

Boros Charm . It should be in every R/W deck, and if Rakdos Charm is included here then there's place for Boros Charm

Price of Progress belongs in every mono red deck.

Reiterate commonly used in many U/R spellbased deck as a mana sink

Fork , roasting marshmallows! Its art alone is worth playing it.

Epidilius Gravecrawler is comparatively worse than Bloodghast as it requires you to play a decent amount of zombies to make it worth it meaning it only really fit in a zombie deck it can't be used ouside of that specific criteria and even then it's underwhelming a 2/1 that can't block isn't worth adding zombie's for unless it's a zombie deck and your idea of adding auras to it makes no sense if you're expecting it to die anyway, equips maybe though not convinced, so either you're not making use of it's return mechanic or you're playing an underwhelming creature. Also if you're playing B/G than why not just go for a card that is a lure and a creature at the same time one that comes to mind would be Golgari Decoy which admitedly isn't even that great. Both cards you're making a case for seem underwhelming outside of very specific criteria in which they can be good Lure isn't neccessarily a bad card and like most it has it's uses, but to me it seems like a card that often underpreforms. So to me that card seem far too limited outside of a very specific decklist that is almost only playing zombie creatures. The bottom line is it's too specific to be considered a staple IMO but i guess thats not for me to judge.

Tynasi, you may want to invest in more punctuation. Your clauses run into each other, your compounds aren't joined by commas or semi-colons, and your comment is overall just plain hard to read. This isn't a grammar snob comment either -- the flow of your comment is simply hard to grok.

And specificity is not a marker to determine something as non-staple. Archangel of Thune, for example, asks for at least a little more life gain built into your deck than normal. By herself she doesn't pose much of a threat, but with three life gain triggers each turn, she really gets going.

That being said, I'll agree that gravecrawler is not a staple of every deck running black. It does a lot of a deck built around saccing, but is mana-intensive if you don't have a rather complex board state to make it go infinite.