For years scholars debated whether these were Urza's or Mishra's creations. Recent research suggests they were invented by the brothers' original master, Tocasia, and that both used these devices.

Masters Edition IV

Grapeshot Catapult

{T}: Grapeshot Catapult deals 1 damage to target creature with flying.

The Southern Paladin taught the airborne vermin to fear the storm that rains upward.

Seventh Edition

oc
T: Grapeshot Catapult deals 1 damage to target creature with flying.

Recent research suggests these creatures were invented by Urza's and Mishra's original master, Tocasia, and that both brothers used them.

Fifth Edition

Rinascimento

Renaissance

Fourth Edition

Fourth Edition Foreign Black Border

Antiquities

Tap to deal 1 damage to target flying creature.