This is homebrew, submitted by a member of the community.
Mineral Mephit
Mineral Mephit
Small Elemental, neutral evilSmall Elemental, neutral evil
Death Burst. When a Mineral Mephit dies, it explodes in a burst of jagged stone and crystals. Each creature within 5 feet of it must make a DC 11 Dexterity saving throw, taking 7 (2d6) slashing damage on a failed save, or half as much damage on a successful one.
False Appearance. While a Mineral Mephit remains motionless it is indistinguishable from a natural formation of rock and crystals.
Innate Spellcasting (1/day). A Mineral Mephit can innately cast upon itself a spell with effects identical to those of Barkskin, causing additional clusters of hard crystals to emerge on its hide and enhancing its armor class to no less than 16. It requires no material components and its innate spellcasting ability is Charisma.
[b][i]Death Burst.[/i][/b] When a Mineral Mephit dies, it explodes in a burst of jagged stone and crystals. Each creature within 5 feet of it must make a DC 11 Dexterity saving throw, taking 7 ([2d6]) slashing damage on a failed save, or half as much damage on a successful one.
[b][i]False Appearance.[/i][/b] While a Mineral Mephit remains motionless it is indistinguishable from a natural formation of rock and crystals.
[b][i]Innate Spellcasting (1/day).[/i][/b] A Mineral Mephit can innately cast upon itself a spell with effects identical to those of [spell]Barkskin[/spell], causing additional clusters of hard crystals to emerge on its hide and enhancing its armor class to no less than 16. It requires no material components and its innate spellcasting ability is Charisma.
Actions
Fists. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 3 (1d6) bludgeoning damage.
Crystal Breath (Recharge 6). A Mineral Mephit can exhale a 15-foot cone of crystal fragments. Each creature in that area must make a DC 10 Dexterity saving throw, taking 7 (2d6) slashing damage on a failed save, or half as much damage on a successful one.
[b][i]Fists.[/b] Melee Weapon Attack:[/i] [+2] to hit, reach 5 ft., one target. Hit: 3 ([1d6]) bludgeoning damage.
[b][i]Crystal Breath (Recharge 6).[/i][/b] A Mineral Mephit can exhale a 15-foot cone of crystal fragments. Each creature in that area must make a DC 10 Dexterity saving throw, taking 7 ([2d6]) slashing damage on a failed save, or half as much damage on a successful one.
Legendary Actions
Details
Mineral Mephits are composed of elemental Earth and Positive Energy, look like small, sturdy, winged creatures made of rock and covered with clusters of crystals, and are among the most attractive and self-assured monsters of their sort. They are also the strongest of the Mephits, although this is not saying much in absolute terms. Mineral Mephits often have access to largely-worthless hoards of white, red, purple, and other crystals that they will cheerfully misrepresent the value of and attempt to use as trade goods or currency. In addition to Terran, Mineral Mephits are also able to speak Quidan, the language of the Positive Energy Plane. Mineral Mephits are composed of elemental Earth and Positive Energy, look like small, sturdy, winged creatures made of rock and covered with clusters of crystals, and are among the most attractive and self-assured monsters of their sort. They are also the strongest of the Mephits, although this is not saying much in absolute terms. Mineral Mephits often have access to largely-worthless hoards of white, red, purple, and other crystals that they will cheerfully misrepresent the value of and attempt to use as trade goods or currency. In addition to Terran, Mineral Mephits are also able to speak Quidan, the language of the Positive Energy Plane.Shout outs: Stacey, bruschkin, Bobby Marr, Vincent Drone, thea musing, Stefku, Brian Nunziato, Garrett Smith, Matt Yates, Elisa Martinez, Ryan Flagg, JMartins, Jade Arrowood, Angelo Anderson, yoland katamari, Dave Walker, Rhonda Seiter, Alexa Hobusch, Jonathan Lekse, Katie White, JollyGamer, Tiernan Greenman, Burlyfighter, Gillian Tolbert, David R Abbott, Rick Marsh, Brittany DeNicholas, Phillip Hash, Amanda Kettles, John Trent Dumproff, Lou Bliss, Pythor Sen, Michael Isberg, Nat, Thomas Wilhelm, Krueger82, Irate The Pirate, Mark L, Conall Reilly, keith oneal rogers, Cam Largent, Thaddeus Johnson, Siren, Donavan Guay, AstroLass, Lizzie, Michael Hamilton, Vedie V, Mylon Schroder, Nathan, Jordan Florez, Robert Rich, Rodney O'Dell, Robin Ellis-Foster, Jess, Lars Yell, Zee Livezey, Kevin, Kerry Melton, Mary Kieser, SallySparrow132, Naomi B, J, Millergendraft, Federica Frezza, Nick Soucy, Ellen Mitchell, Melanie Warga, Jeremiah Walker, Bryan Sheairs, Bryan Kempka, chris wilson, Max Hops, Sarah Holland, Joshua David Maddox, Jennifer Smith, Liz Fontain, Ray Bissonnette, Joe Dalby, Joline Tran, Nicholas Zamora, ShortyMcgibble, Mr. Vinclair, mtnman1979@aol.com, KFB_Patreon, eric sun, Kayleigh Sulin, Dani, Gundar Wez, Nahellion, Ben Pytlik, Nicholas Hanke, bilbens baggo, Stuart, Brysen Packer, Maxwell Mayer, Gannon Dubay, Caio Mantovani Alves, Thobek, Aaron Teupe, Felix Schmäche, XMrMonkyx ., Miss Zilla M, Jordan Brazeal, Kyle Clark, Jake Lane, Adam Ruiz, Phillip P Torchia, Stefan Gottschalk's, Remora Jewel, jeremy baisch, Daniel Edwards, Zealot23, Shane Andrews, Brandon Mußiq, CJMAXP, Dylan Rintoul, KingHavok1217, Mx Charlie, Zachary Burgess-Hicks, Shazear, Steve Rosenlund, Ezzela1891, John Nazario, Gordon Alexander Fallon, Justin Stensgard, Jason Clark, Trey Vickory
Their contribution stands as a beacon of hope for all adventurers!