Amphibolite and Graphite Darts

Amphibolite and Graphite Darts enters the battlefield with 5 Dart counters.
Equipped creature gains Wither.
Equipped creature gains "{1}{w/b}{w/u}, Remove a Dart counter from Amphibolite and Graphite Darts, {t}: Exile target nonland permanent."
Equip {u/b}{w/b}

Amphibolite is the Common Stone of Space, while Graphite is a Prohibiting Gemstone. These bolts annihilate matter by temporarily removing the space it occupies.