This is homebrew, submitted by a member of the community.
Rotted Treant
Rotted Treant
Huge Creature, Neutral EvilHuge Creature, Neutral Evil
Undead Fortitude. If damage reduces the zombie to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant damage or from a critical hit. On a success, the zombie drops to 1 hit point instead.
False Appearance. While the zombie remains motionless, it is indistinguishable from a normal rotting tree.
Siege Monster. The zombie deals double damage to objects and structures.
Undead Fortitude. If damage reduces the zombie to 0 hit points, it must make a Constitution saving throw with a DC of 5 + the damage taken, unless the damage is radiant damage or from a critical hit. On a success, the zombie drops to 1 hit point instead.
False Appearance. While the zombie remains motionless, it is indistinguishable from a normal rotting tree.
Siege Monster. The zombie deals double damage to objects and structures.
Actions
Multiattack. The zombie makes two slam attacks.
Slam. Melee Weapon Attack: +10 to hit, reach 5 ft., one target. Hit: 16 (3d6+6) bludgeoning damage.
Rock. Melee Weapon Attack: +10 to hit, range 60/180 ft., one target. Hit: 28 (4d10+6) bludgeoning damage.
Poison Breath (Recharge 5-6). The zombie exhales poisonous gas in a 60-foot cone. Each creature in that area must make a DC 15 Constitution saving throw, taking 42 (12d6) poison damage on a failed save, or half as much damage on a successful one.
Multiattack. The zombie makes two slam attacks.
Slam. Melee Weapon Attack: [+10] to hit, reach 5 ft., one target. Hit: 16 ([3d6+6]) bludgeoning damage.
Rock. Melee Weapon Attack: [+10] to hit, range 60/180 ft., one target. Hit: 28 ([4d10+6]) bludgeoning damage.
Poison Breath (Recharge 5-6). The zombie exhales poisonous gas in a 60-foot cone. Each creature in that area must make a DC 15 Constitution saving throw, taking 42 ([12d6]) poison damage on a failed save, or half as much damage on a successful one.
Legendary Actions
Details
Cursed by necromancy into a state of living decay, these big, lumbering, bark-skinned husks of treants stay motionless for years, even centuries, until they sense living creatures wander into its territory. It then creaks and cracks slowly to life, a festering, poison-ridden form shambling forward with malicious intent. In its newfound state, the rotted treant's connection to nature is permanently severed, preventing it from calling upon its fellow trees as it once did. Cursed by necromancy into a state of living decay, these big, lumbering, bark-skinned husks of treants stay motionless for years, even centuries, until they sense living creatures wander into its territory. It then creaks and cracks slowly to life, a festering, poison-ridden form shambling forward with malicious intent. In its newfound state, the rotted treant's connection to nature is permanently severed, preventing it from calling upon its fellow trees as it once did.Shout outs: Stacey, Alexa Hobusch, Jonathan Lekse, DMMichael7000, Ofelia Greer, Katie White, Subzotic, JollyGamer, Jayden wingler, Yi Tan, Phillip Brewer, Thoueris Zanzibar, Emma Holloway, Ashley Sullivan, Ghostfang1337, Gillian Tolbert, David R Abbott, S.T. Jenkins, Schoxmania Werks, Vanda Leipold, Brittany DeNicholas, Phillip Hash, Ly Anton-Blake, Amanda Kettles, Anthony Brown, Lou Bliss, Treighton, Pythor Sen, myrontheotter, Kassie Nicovara, Michael Isberg, Nat, Cory Evans, Krueger82, BestWorseCaseScenario, Damian Steele, Icarus Unleashed, Mark L, Lj Nielson, Conall Reilly, Alex, Violet Floyd, keith oneal rogers, Moss, William Bamann, Merissa, Patrick Natale, Cam Largent, Thaddeus Johnson, Siren, Donavan Guay, AstroLass, Jack Stevens, Chandlor Desper, Lizzie, Masca Boom, Jordan, Rincewind, Michael Hamilton, Rob Hale, Vedie V, Mylon Schroder, Nathan, Tiffany Mathis, Joseph Mitchell, Jordan Florez, Robert Rich, Robin Ellis-Foster, Deanna Pyle, Jess, Meme Pitt-Melton, E.D.F., Devon Bickel, Zee Livezey, Kevin, ryan scott, Christianna Schommer, Kerry Melton, Mary Kieser, SallySparrow132, Lunesolace, DJ_Kelf, Cassandra Keyes, Naomi B, Millergendraft, charles phillips, Nick Soucy, Ellen Mitchell, Melanie Warga, Jeremiah Walker, Bryan Kempka, chris wilson, Max Hops, Sarah Holland, Joshua David Maddox, Jennifer Smith, Ray Bissonnette, Joe Dalby, Nicholas Zamora, Yuki, ShortyMcgibble, mtnman1979@aol.com, KFB_Patreon, eric sun, Bruce Willison, Gundar Wez, Ken Shapiro, Matthew payne, Jacob Plummer, Nahellion, Serena Verden, bilbens baggo, Stuart, Brysen Packer, Galygious, Tim Mason, Maxwell Mayer, Gannon Dubay, Thobek, Aaron Teupe, Celso R Garcia III, Felix Schmäche, XMrMonkyx ., John, Miss Zilla M, RRare, Jordan Brazeal, Kyle Clark, Jake Lane, Adam Ruiz, Phillip P Torchia, Natalie Luttrell, Stefan Gottschalk's, Remora's Jewel, Dawnwolf, Buffonturtle, Christina Majchrzak, jeremy baisch, Ivee Quinn, 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!