some sustain

Goodberry

Spells Player’s Handbook

Ten berries appear in your hand and are infused with magic for the duration. A creature can take a Bonus Action to eat one berry. Eating a berry restores 1 Hit Point, and the berry provides enough nourishment to sustain a creature for one day. Uneaten berries disappear when the spell ends.

Rod of Security

Magic Items Dungeon Master’s Guide

contains enough water and food to sustain its visitors, and the demiplane’s environment can’t harm its occupants. Everything else that can be interacted with there can exist only there. For

Space Guppy

Monsters Spelljammer: Adventures in Space

Air Envelope. If it has at least 1 hit point, the guppy can generate an air envelope around itself when in a vacuum. This air envelope can sustain the guppy and one other Tiny creature in its space

Angry Sorrowsworn

Monsters Mordenkainen Presents: Monsters of the Multiverse

violence to sustain their existence, angry sorrowsworn—sometimes called the Angry—grow more powerful when their foes fight back. If a creature opts not to attack, though, this sorrowsworn

Talon Beast

Monsters The Book of Many Things

magic isn’t enough to sustain them, so they also hunt other living things. A talon beast thrives in the wilderness, but in its search for magic, it often prowls settlements, ruins, catacombs, or the

Gadabout

Monsters Monstrous Compendium Vol. 1: Spelljammer Creatures

Air Envelope. If it has at least 1 hit point, the gadabout can generate an air envelope around itself when in a vacuum. This air envelope can sustain the gadabout and one other creature in its space

Oblex Spawn

Monsters Mordenkainen Presents: Monsters of the Multiverse

","rollType":"damage","rollAction":"Pseudopod","rollDamageType":"psychic"} psychic damage.An oblex devours memories not only to sustain its existence, but also to spawn new oblexes. Each time it fully drains

Vegepygmy Scavenger

Monsters Quests from the Infinite Staircase

. While vegepygmies can sustain themselves by absorbing nutrients from soil and other organic matter, they prefer a carnivorous diet achieved through hunting and scavenging. Vegepygmies can live

Vegepygmy Thorny Hunter

Monsters Quests from the Infinite Staircase

vegepygmies can sustain themselves by absorbing nutrients from soil and other organic matter, they prefer a carnivorous diet achieved through hunting and scavenging. Vegepygmies can live indefinitely so

Vegepygmy Moldmaker

Monsters Quests from the Infinite Staircase

fungus rumored to have originated from beyond the stars. Vegepygmies gather in small bands, communicating with a combination of gestures, hisses, and rhythmic taps. While vegepygmies can sustain

Madcap

Monsters Baldur’s Gate: Descent into Avernus

sustain its unnatural existence, a redcap must soak its hat in the fresh blood of its victims. If the blood isn’t replenished at least once every three days, the redcap vanishes as if it had never

Corpse Flower

Monsters Mordenkainen Presents: Monsters of the Multiverse

of the earth and begins scavenging Humanoid corpses from battlefields and graveyards. Using its fibrous tentacles, it stuffs the remains into its body to sustain and repair itself. The plant has a

Green Greatwyrm