MTG Salvation

The only archetypes that actively want Bone Shards in our cube are reanimator and black aggro (Gravecrawlers, Gutterbones etc. that dont mind to be sacrificed too much) and it pretty much stops there. People never draft it for any other decks. Do you think it is utterly unplayable in UB control deck or in a BG value, planeswalker deck with mana elves? I'm basically trying to figure out how narrow the card really is.

Has anyone managed to test this little nugget?? Our playgroup's experiences with the card have been varied to say the least: it has been either unbelievably good and synergistic or the worst discard outlet/removal spell in our cube. On the fence about swapping this for a good ol' doom blade effect.