b'Cobbleswarm \n'b'  Medium  swarm of Tiny  monstrosities ,  unaligned  \n'b'  Armor Class  15 (natural armor)  Hit Points  36 (8d8)  Speed  30 ft.\n'b' STATS STR: 12 (+1) DEX:  11 (+0)  CON:  11 (+0)  INT:  5 (-3)  WIS:  12 (+1)  CHA:  5 (-3)  \n'b'\n'b'\n'b'\n'b'\n'b'\n'b'\n'b'  Damage Resistances  bludgeoning, piercing, slashing  Condition Immunities   charmed ,  frightened ,  grappled ,  paralyzed ,  petrified ,  prone ,  restrained ,  stunned   Senses  passive  Perception  11  Languages  \xe2\x80\x94  Challenge  2 (450 XP)  Proficiency Bonus  +2 \n'b' SPECIAL TRAITS \n'b'\n'b'  False Appearance . While the cobbleswarm remains motionless, it is indistinguishable from normal stones. \n'b'  Shifting Floor . Whenever the cobbleswarm moves into a creature\xe2\x80\x99s space or starts its turn in another creature\xe2\x80\x99s space, the creature must succeed on a DC 13  Dexterity  saving throw or fall  prone . A  prone  creature must succeed on a DC 13  Dexterity  ( Acrobatics ) check to stand up in a space occupied by the swarm. \n'b'  Swarm . The cobbleswarm can occupy another creature\xe2\x80\x99s space and vice versa, and the swarm can move through any opening large enough for a Tiny stone. The swarm can\xe2\x80\x99t regain  hp  or gain  temporary hp . \n'b'\n'b' ACTIONS \n'b'\n'b'  Stings .  Melee Weapon Attack : +3 to hit, reach 0 ft., one target in the swarm\xe2\x80\x99s space.  Hit : 15 (6d4) piercing damage, or 7 (3d4) piercing damage if the swarm has half its  hp  or fewer. \n'b'\n'b' BONUS ACTIONS \n'b'\n'b'  Shift and Tumble . The cobbleswarm pushes a  prone  creature in its space up to 5 feet away from it. \n'b'\n'b' ABOUT \n'b' The paving stones underfoot suddenly lurch and tumble over one another. Thousands of tiny limbs, pincers, and stingers break from the stony surface and frantically scuttle forward. \n'b' A cobbleswarm is made up of tiny, crablike creatures with smooth, stony shells. Individually they are referred to as cobbles. The creatures vary in size, shape, and color, but all have six segmented legs, a whiplike stinger, and a single eye. \n'b'  Paving Stone Mimics . When the eye is closed and the limbs are pulled under the shell, cobbles are nearly indistinguishable from lifeless paving stones. Victims of cobbleswarms are caught unaware when the floor beneath them suddenly writhes and shifts, and dozens of eyes appear where there should be none. \n'b'  Trap Affinity . Cobbleswarms have a rudimentary understanding of traps. They often hide in places where their Shift and Tumble ability can slide intruders into pits or across trapped areas. Kobold tribes prize them for this reason.'