Barbarian subclass
Giant
Barbarians on the Path of the Giant draw on giant magic until rage changes their size, reach, and command over the battlefield.
The path favors thrown weapons, elemental damage, physical repositioning, and becoming too large to ignore.
Later features such as Giant's Havoc, Elemental Cleaver, Mighty Impel expand that identity at higher levels, so the subclass has a clearer role in combat, exploration, utility, or support.
Source
Bigby Presents: Glory of the Giants
Giant's Power
You learn the Giant language or another language if you already know it, and you gain a primal cantrip tied to giant magic.
Your Wisdom 
D&D Portal - Wisdom Awareness, intuition, and insight Wisdom measures awareness, intuition,
perception, and the ability to understand people and surroundings. Full link: https://dnd-portal.com/rules/ability-scores/wisdom/ is the spellcasting ability for that cantrip.
Giant's Havoc
While raging, your thrown weapon attacks can use your Strength 
D&D Portal - Strength Physical power and athletic ability Strength measures physical power, athletic
ability, and a character's capacity to exert force. Full link: https://dnd-portal.com/rules/ability-scores/strength/ and add your Rage Damage, and your reach increases as your body grows larger.
Elemental Cleaver
When you rage, you can charge a weapon with Acid 
D&D Portal - Acid Damage type Acid is a damage type used by attacks,
spells, class features, resistance, immunity, and vulnerability. Full link: https://dnd-portal.com/rules/damage-types/acid/, Cold 
D&D Portal - Cold Damage type Cold is a damage type used by attacks,
spells, class features, resistance, immunity, and vulnerability. Full link: https://dnd-portal.com/rules/damage-types/cold/, Fire 
D&D Portal - Fire Damage type Fire is a damage type used by attacks,
spells, class features, resistance, immunity, and vulnerability. Full link: https://dnd-portal.com/rules/damage-types/fire/, Lightning 
D&D Portal - Lightning Damage type Lightning is a damage type used by attacks,
spells, class features, resistance, immunity, and vulnerability. Full link: https://dnd-portal.com/rules/damage-types/lightning/, or Thunder 
D&D Portal - Thunder Damage type Thunder is a damage type used by attacks,
spells, class features, resistance, immunity, and vulnerability. Full link: https://dnd-portal.com/rules/damage-types/thunder/ power. It deals extra damage, can be thrown, and returns to your hand after a thrown attack.
You can later change the selected damage type with a Bonus Action 
D&D Portal - Bonus Action Action rule Bonus Action is an action economy rule used to
describe what a creature can do on its turn. Full link: https://dnd-portal.com/rules/actions/bonus-action/.
Mighty Impel
As a Bonus Action D&D Portal - Bonus Action Action rule Bonus Action is an action economy rule used to
describe what a creature can do on its turn. Full link: https://dnd-portal.com/rules/actions/bonus-action/, you can move a nearby creature to another space. Unwilling creatures make a Strength D&D Portal - Strength Physical power and athletic ability Strength measures physical power, athletic
ability, and a character's capacity to exert force. Full link: https://dnd-portal.com/rules/ability-scores/strength/ 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 your feature DC.
Demiurgic Colossus
Your rage makes you larger and extends your reach further, while Mighty Impel and Elemental Cleaver both become stronger.