In Phyrexia: All Will Be One, we have a cycle of one-mana artifacts with activated abilities that can draw you a card called Skullbombs. This builds on a similar cycle from Scars of Mirrodin called Spellbombs, which were themselves a sequel to the original Spellbombs from Mirrodin block. It’s not often we see cycles full reiterated this many times, but …
