Amorphous. The pudding can move through a space as narrow as 1 inch wide without squeezing.

Drinking Vulnerability. A creature other than an ooze can attempt to drink a part of the ooze to gain the effect of a random potion. If a creature decides to do so, it must be within 5 feet of the pudding and make a Constitution (Sleight of Hand) check contested by the pudding's Dexterity or Strength check. On a success, it drinks a part of it, takes 10 (3d6) acid damage and gains the effect of a random potion as shown on the Living Potion table. If a creature already is under the effect of a potion, roll on the Mixing Potions table (DMG page 140) to determine what happens.

Also, when a creature drinks from it, the pudding's size is reduced by one category. If the pudding is tiny and a creature successfully drinks it, it disappears.

False Appearance. While the pudding remains motionless, it is indistinguishable from a puddle of remnants of spilled potions.

Living Potion. At the start of each of its turns, the pudding gains the effects of one of the potions it was made up from, which lasts until the start of the pudding's next turn. To determine this effect, roll on the Living Potion table.

Magic Resistance. The pudding has advantage on saving throws against spells and other magical effects.

Spider Climb. The pudding can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Pseudopod. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 10 (3d6) acid damage and the target gains the effect of a random potion as shown on the Living Potion table. If a creature already is under the effect of a potion, roll on the Mixing Potions table (DMG page 140) to determine what happens.