This is homebrew, submitted by a member of the community.
Banisher
Banisher
Medium Humanoid, Chaotic EvilMedium Humanoid, Chaotic Evil
Death Throes: When the banisher dies, it explodes, and each creature within 30 feet of it must make a DC 19 Dexterity saving throw, taking 82(15d10) force damage on a failed save, or half as much damage on a successful one.
Magic Absorption: The banisher has advantage on saving throws against spells and other magical effects. If the banisher is subjected to a spell or magical effect that allows it to make a saving throw to take only half damage, it instead takes no damage if it succeeds on a saving throw.
Reaction: Spell Return: In response to a creature casting a spell targeting the banisher, the banisher redirects it against the caster, turning the caster into the target.
Death Throes: When the banisher dies, it explodes, and each creature within 30 feet of it must make a DC 19 Dexterity saving throw, taking 82(15d10) force damage on a failed save, or half as much damage on a successful one.
Magic Absorption: The banisher has advantage on saving throws against spells and other magical effects. If the banisher is subjected to a spell or magical effect that allows it to make a saving throw to take only half damage, it instead takes no damage if it succeeds on a saving throw.
Reaction: Spell Return: In response to a creature casting a spell targeting the banisher, the banisher redirects it against the caster, turning the caster into the target.
Actions
Multiattack: The banisher makes two force strike attacks.
Force Strike: Melee or Ranged Spell Attack: +10 to hit, reach 5ft, or range 120ft, one target. Hit: 20(3d10+4) force damage
Force Unleash (Recharge 5-6): The banisher emits destructive energy in a 90-foot line that is 5feet wide. Each creature in that line makes a DC 19 Strength saving throw, taking 66(12d10) force damage on a failed save, or half as much damage on a successful one. A Creature that fails the save is pushed 30 feet away from the banisher and is knocked prone.
Multiattack: The banisher makes two force strike attacks.
Force Strike: Melee or Ranged Spell Attack: +10 to hit, reach 5ft, or range 120ft, one target. Hit: 20(3d10+4) force damage
Force Unleash (Recharge 5-6): The banisher emits destructive energy in a 90-foot line that is 5feet wide. Each creature in that line makes a DC 19 Strength saving throw, taking 66(12d10) force damage on a failed save, or half as much damage on a successful one. A Creature that fails the save is pushed 30 feet away from the banisher and is knocked prone.
Legendary Actions
3 Legendary actions per sequence:
Force Strike: The banisher uses Force StrikePoison Essence: The banisher targets one creature it can see within 60 feet of it. The target must make a DC 19 Constitution saving throw. On a failed save, the next spell cast by the target deals to the target 1d8 necrotic damage per level of the spell.
Banish Magic (Costs 2 Actions): The banisher emits an aura of antimagic, as in the antimagic field spell in a 30 foot radius sphere centered on the banisher, until the start of its next turn.
Siphon Magic (Costs 2 Actions): The banisher targets one creature it can see within 60 feet of it. The banisher rolls a d8, and the target loses a spell slot of that level or lower. If the target has no spell slots left of that level or lower, nothing happens. 3 Legendary actions per sequence:
Force Strike: The banisher uses Force Strike
Poison Essence: The banisher targets one creature it can see within 60 feet of it. The target must make a DC 19 Constitution saving throw. On a failed save, the next spell cast by the target deals to the target 1d8 necrotic damage per level of the spell.
Banish Magic (Costs 2 Actions): The banisher emits an aura of antimagic, as in the antimagic field spell in a 30 foot radius sphere centered on the banisher, until the start of its next turn.
Siphon Magic (Costs 2 Actions): The banisher targets one creature it can see within 60 feet of it. The banisher rolls a d8, and the target loses a spell slot of that level or lower. If the target has no spell slots left of that level or lower, nothing happens.
Details
Shout outs: Stacey, Wesley Muncy, skipper shook, elijah D. maben, R., bruschkin, Vincent Drone, thea musing, Brian Nunziato, Garrett Smith, Matt Yates, Elisa Martinez, Ryan Flagg, 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, ツ Htz_Michelle, Rick Marsh, Brittany DeNicholas, Phillip Hash, Amanda Kettles, John Trent Dumproff, Lou Bliss, Pythor Sen, Desedent, Michael Isberg, Nat, Thomas Wilhelm, Krueger82, Irate The Pirate, Mark L, Conall Reilly, keith oneal rogers, Cam Largent, Siren, 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, Dani, Gundar Wez, Nahellion, Ben Pytlik, Nicholas Hanke, bilbens baggo, Stuart, Brysen Packer, Maxwell Mayer, Gannon Dubay, Caio Mantovani Alves, Thobek, Aaron Teupe, Mage1X, XMrMonkyx ., Miss Zilla M, Jordan Brazeal, Kyle Clark, Jake Lane, Adam Ruiz, Phillip P Torchia, Stefan Gottschalk's, Remora Jewel, Alex Harford (VA7OMM), jeremy baisch, Daniel Edwards, Zealot23, Shane Andrews, Brandon Mußiq, CJMAXP, Dylan Rintoul, Lisa Tucker, KingHavok1217, Mx Charlie, Justin Snyder, 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!
