Gnome, Pebble (5e Creature)
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Small humanoid (gnome), neutral neutral good
Magic Resistance. The gnome has advantage on saving throws against spells or magical effects.
Minor Spell Immunity. The gnome is immune to the effects of 3rd-level spells or lower.
Multiattack. The gnome makes one short sword and one light hammer attack.
Short sword. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage.
Light hammer. Melee or Ranged Weapon Attack: +4 to hit, reach 5ft. or range 20/60, one target. Hit: 2 (1d4) bludgeoning damage.
Pebble gnomes are weak and timid cousins of rock gnomes. They are unremarkable apart from their ability to nullify magic: spells targeted at them fizzle away, and enchanted weapons seem to lose their edge. Pebble gnomes are incapable of becoming wizards, clerics or spellcasters of any sort, nor can they benefit from cure or raise dead spells.
Pebble gnomes occupy themselves with mining, with which they are second-rate compared to dwarves and rock gnomes. They hate fighting, and will only do so to defend themselves. They do not like poetry, music or fashion. They are dour, with a particularly dim view of adventure and storytelling, treasures and traps. So disdainful are they of adventurers clomping through their underground lairs, they sometimes spitefully arrange empty treasure chests in tempting locations (and make a point not to carry or own valuables).