Rubber Blob
Amongst the oozes, our latest ooze is by far the most extreme. The other various slimes are lethargic and droopy, even our mighty namesake, but the rubber blob is a creature of pure speed, and all the more so if you try to kill it. Every rubber blob comes standard with an instinctual desire to achieve escape velocity, or at least to bounce off of the party member who just tried to club it. For all you DMs out there, try leaving your party in a box with half a dozen of these; that many rubber blobs bouncing against each other will reduce all but the most durable adventurers to a souplike homogenate in just a few rounds of combat.
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Rubber Blob
Bouncy and unpredictable, the rubber blob is perhaps the only ooze one can honestly call ‘fast’. While it has the usual sticky consistency of most oozes, when struck the blob’s mass tightens and smooths, absorbing the force and sailing through the air at high speed. Rubber blobs, as a result, can be exceptionally difficult to catch by normal means, as any regular blow could lead to it escaping or retaliating—at extremely high velocity.
Experiment Gone Wrong. It is said that the first rubber blob was the result of a chemical concoction, created by an alchemist trying to synthesize a durable but flexible material. When the mixture was done cooking, however, the substance not only responded to impact much more violently than expected, but it was alive.
Need for Speed. As much as oozes can want anything, rubber oozes seem to want to go fast. Whatever chemical reaction drives them to rebound so violently also seems to drive them to seek out the force that propels them. Blobs are often found seeking high places to drop themselves from, or angry creatures willing to knock them into the air. Some even claim that a rubber blob that is bounced and flung often enough can be kept calm and tame, used for all sorts of sports and competitions—but no truly docile blobs have been recorded.
Ball Pit of Doom. The rubber blob’s ‘desire’ to bounce doesn’t just drive it to seek high cliffs and trees; they also seek out each other. A group of rubber blobs is a chaotic thing to behold, as they constantly crash into each other and hurtle away again in all directions. If the blobs congregate in an enclosed area, their collisions become nearly constant, making it a state of seeming bliss for the blobs, but one of extreme danger for anything else.
Rubber Blob
Small Ooze, Unaligned
Armor Class 11
Hit Points 84 (13d6 + 39)
Speed 20 ft., climb 20 ft.
STR 12 (+1)
DEX 13 (+1)
CON 16 (+3)
INT 1 (-5)
WIS 6 (-2)
CHA 1 (-5)
Damage Immunities acid, bludgeoning, force, thunder, lightning
Condition Immunities blinded, charmed, deafened, exhaustion, frightened, prone
Senses blindsight 60 ft. (blind beyond this radius), passive Perception 8
Languages —
Challenge 3 (700 XP) Proficiency Bonus +2
Amorphous. The blob can move through a space as narrow as 1 inch wide without squeezing.
Bounce-by. The blob doesn’t provoke opportunity attacks when it Bounces or Rebounds out of an enemy’s reach.
Reactive. The blob can take one reaction on every turn in combat.
Actions
Bounce. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 8 (2d6 + 1) bludgeoning damage plus 4 (1d8) acid damage, and the blob can move up to its speed away from the target.
Reactions
Rebound. When the blob is hit with a melee attack, it can hurl itself away from the source of the damage. The blob sails in a straight line toward a point within 60 feet, stopping early if it impacts against a solid surface. If the blob would strike a creature, that creature must make a DC 11 Dexterity saving throw. On a failed save, the creature takes 7 (2d6) bludgeoning damage plus 4 (1d8) acid damage as the blob strikes the creature.
