Shard Phoenix could handle most go-wide strategies (with Morphling able to outclass a single big threat), and Spike Feeder was invaluable for combating direct damage
An Aura put onto the battlefield this way doesn't target anything (so it could be attached to an opponent's permanent with hexproof, for example), but the Aura's enchant ability restricts what it can be attached to
So that makes this strong as a leader of a Mono-Black Aggro or Tokens deck that are swinging all out
Copies of this card were created and distributed with the understanding that the art wouldn't be made public, and while it's a surprise that the art wasn't leaked any sooner than this, it's still at least a little bit disappointing to see the promise broken so many years later
Another thing that jumped out at me is that a lot of slivers have abilities that cost mana, and if we get too many in play it can start to become a burden
Fists of Flame Fists of Flame works in similar decks that Crash Through below does, but with a slightly different aim