There is the drawback that the artifact you cast from the graveyard enters with a Finality counter, but there are multiple ways around this
Example of Usage: "Once per turn: You can detach 1 material from this card, then target 1 Spell in your GY
A reprint would likely rob us of this, and that cannot stand
Only their abilities can be used, but they dont suffer from summoning sickness so they can be used on the first turn you play them
His self-destruction is gone, but his Spell negate is still alive, so I have a bad feeling about it
If you manage to fill up your graveyard with goodies, or drop a simple Buried Alive or similar card, you can cast it from your graveyard while also getting to do the same to the little Knights out there that also want a turn leaving the dark and crowded graveyard for a open and free-range Knightfield of Face-Smashing good times