This is homebrew, submitted by a member of the community.
Mbielu
Mbielu
Huge beast, unalignedHuge beast, unalignedToxic Skin. A creature that touches the mbielu or hits it with a melee attack exposes itself to the mbielu’s poisonous skin. The creature must succeed on a DC 13 Constitution saving throw or be poisoned for 1 minute. While poisoned in this way, a creature also suffers disadvantage on Intelligence, Wisdom, and Charisma saving throws.
[b]Toxic Skin.[/b] A creature that touches the mbielu or hits it with a melee attack exposes itself to the mbielu’s poisonous skin. The creature must succeed on a DC 13 Constitution saving throw or be poisoned for 1 minute. While poisoned in this way, a creature also suffers disadvantage on Intelligence, Wisdom, and Charisma saving throws.
Actions
Tail. Melee Weapon Attack: +6 to hit, reach 10 ft., one target. Hit: 20 (3d10+4) bludgeoning damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be knocked prone.
Reaction
Rollover. If the mbielu is grappled by a Large creature, it rolls on top of the grappler and crushes it. The mbielu automatically escapes from the grapple and the grappler takes 20 (3d10+4) bludgeoning damage.
[b]Tail.[/b] Melee Weapon Attack: [+6] to hit, reach 10 ft., one target. Hit: 20 ([3d10+4]) bludgeoning damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be knocked prone.
[big]Reaction[/big]
[b]Rollover.[/b] If the mbielu is grappled by a Large creature, it rolls on top of the grappler and crushes it. The mbielu automatically escapes from the grapple and the grappler takes 20 ([3d10+4]) bludgeoning damage.
Legendary Actions
Details
This lumbering saurian quadruped has large, oblong plates of bone covered in greenish slime protruding from its back and its thick, club-like tail.
Large Plates. People describe this reptilian herbivore as “the animal with planks growing out of its back.” The mbielu is a large dinosaur akin to a stegosaurus, with square dorsal plates that support symbiotic colonies of toxic, green algae. The plates themselves are as large as shields.
Aquatic Herbivore. An mbielu spends most of its life underwater, feeding on aquatic plants and avoiding the withering glare of the harsh sun, but it comes onto land frequently to sun itself for a few hours before immersing itself once again.
Toxic Alchemy. Its dorsal plate algae undergo an alchemical reaction in the continual transition between water and sky, especially during mbielu migrations to new watery dens. The algae produce a hallucinogenic contact poison that clouds the minds of most creatures. Mbielus themselves are immune to the toxin.
This lumbering saurian quadruped has large, oblong plates of bone covered in greenish slime protruding from its back and its thick, club-like tail.Large Plates. People describe this reptilian herbivore as “the animal with planks growing out of its back.” The mbielu is a large dinosaur akin to a stegosaurus, with square dorsal plates that support symbiotic colonies of toxic, green algae. The plates themselves are as large as shields.
Aquatic Herbivore. An mbielu spends most of its life underwater, feeding on aquatic plants and avoiding the withering glare of the harsh sun, but it comes onto land frequently to sun itself for a few hours before immersing itself once again.
Toxic Alchemy. Its dorsal plate algae undergo an alchemical reaction in the continual transition between water and sky, especially during mbielu migrations to new watery dens. The algae produce a hallucinogenic contact poison that clouds the minds of most creatures. Mbielus themselves are immune to the toxin.
Shout outs: Stacey, Revan#4962, Jane McClintock, JMartins, Jade Arrowood, Sean Kane, Angelo Anderson, yoland katamari, Rhonda Seiter, Noble Saffron, Alexa Hobusch, Jonathan Lekse, DMMichael7000, Katie White, Subzotic, JollyGamer, Jayden wingler, Yi Tan, Emma Holloway, Ashley Sullivan, Gillian Tolbert, David R Abbott, S.T. Jenkins, Vanda Leipold, Rick Marsh, Brittany DeNicholas, Phillip Hash, Ly Anton-Blake, Bobbie Crane, Amanda Kettles, Anthony Brown, Lou Bliss, Treighton, Pythor Sen, Michael Isberg, Nat, Cory Evans, Krueger82, BestWorseCaseScenario, Damian Steele, Icarus Unleashed, Mark L, Conall Reilly, Alex, keith oneal rogers, Moss, Ash Harkness, William Bamann, Merissa, Patrick Natale, Cam Largent, Thaddeus Johnson, Siren, Donavan Guay, AstroLass, Chandlor Desper, Lizzie, Masca Boom, Jordan, Rincewind, Michael Hamilton, Rob Hale, Vedie V, Mylon Schroder, Nathan, Joseph Mitchell, Jordan Florez, Robert Rich, Rodney O'Dell, Robin Ellis-Foster, Deanna Pyle, Jess, Meme Pitt-Melton, E.D.F., Zee Livezey, Kevin, ryan scott, Kerry Melton, Mary Kieser, SallySparrow132, Lunesolace, DJ_Kelf, Cassandra Keyes, Naomi B, Millergendraft, charles phillips, Nick Soucy, Ellen Mitchell, Melanie Warga, Jeremiah Walker, Bryan Sheairs, Bryan Kempka, chris wilson, Max Hops, Sarah Holland, Joshua David Maddox, Jennifer Smith, Ray Bissonnette, Joe Dalby, Nicholas Zamora, ShortyMcgibble, Mr. Vinclair, mtnman1979@aol.com, KFB_Patreon, eric sun, Bruce Willison, Gundar Wez, Ken Shapiro, Nahellion, Serena Verden, bilbens baggo, Stuart, Brysen Packer, Galygious, Tim Mason, Maxwell Mayer, Gannon Dubay, Thobek, Aaron Teupe, Felix Schmäche, XMrMonkyx ., John, Miss Zilla M, Jordan Brazeal, Kyle Clark, Jake Lane, Adam Ruiz, Phillip P Torchia, Natalie Luttrell, Brian McDougall, Stefan Gottschalk's, Remora's Jewel, Buffonturtle, jeremy baisch, Zealot23, Shane Andrews, CJMAXP, Chevy Jones, KingHavok1217, Shazear, Curran Vallejo, Steve Rosenlund, Leanna Orr, Ezzela1891, John Nazario, Gary, Gordon Alexander Fallon, Jason Clark, Trey Vickory
Their contribution stands as a beacon of hope for all adventurers!