Barbarian subclass
Wild Magic
Wild Magic Barbarians carry raw magic in their rage, releasing strange effects whenever battle pushes that power to the surface.
The path mixes randomness with support: surges can disrupt enemies, empower allies, and eventually become easier to guide.
Later features such as Wild Surge, Bolstering Magic, Unstable Backlash expand that identity at higher levels, so the subclass has a clearer role in combat, exploration, utility, or support.
Source
Tasha's Cauldron of Everything
Magic Awareness
As an action, you can sense nearby spells 
D&D Portal - Spells Spellcasting rule Spells is a spellcasting rule used by spells,
class features, and magical effects. Full link: https://dnd-portal.com/rules/spellcasting/spells/ and magic items that are not hidden behind total cover.
Uses refresh after a long rest 
D&D Portal - Long Rest Rest rule Long Rest is a rest rule used to recover
resources, hit points, and class features. Full link: https://dnd-portal.com/rules/rests/long-rest/.
Wild Surge
When you rage, you roll for a magical surge. Some results call for a saving throw 
D&D Portal - Saving Throw D20 test rule Saving Throw is a d20 test rule used to resolve
uncertain outcomes during play. Full link: https://dnd-portal.com/rules/d20-tests/saving-throw/ against a DC based on your Constitution 
D&D Portal - Constitution Health, stamina, and endurance Constitution measures health, stamina, endurance,
and a character's resistance to physical hardship. Full link: https://dnd-portal.com/rules/ability-scores/constitution/ modifier.
The surge table can teleport you, harm enemies, protect allies, alter nearby terrain, or add temporary magical effects to your attacks.
Bolstering Magic
As an action, you can touch a creature to improve an attack rolls D&D Portal - Attack Roll Combat rule Attack Roll is a combat rule used by attacks,
damage, defenses, or turn order. Full link: https://dnd-portal.com/rules/combat/attack-roll/ or ability check, or help restore a spell slot.
Unstable Backlash
While raging, taking damage or failing a saving throw D&D Portal - Saving Throw D20 test rule Saving Throw is a d20 test rule used to resolve
uncertain outcomes during play. Full link: https://dnd-portal.com/rules/d20-tests/saving-throw/ lets you use your Reaction 
D&D Portal - Reaction Action rule Reaction is an action economy rule used to
describe what a creature can do on its turn. Full link: https://dnd-portal.com/rules/actions/reaction/ to roll a new Wild Surge effect.
Controlled Surge
When rolling on the Wild Surge table, you can roll twice and choose the result, with duplicate rolls letting you choose any effect.