Golemancer

This subclass has the benefit of a companion, which is around the character at all time, helping them with tasks and other stuff. But...its not a boulder, its a rock. Or more likely, a golem. A variety of golems, each with a different set of abilities, is ready for you to fight and help in the everyday's life. You dont just have a servant (or multiple later on), but a friend as well.

Golemancing

At level 1, you gain the ability to summon a golem. Each Golem has a variety of abilities. Each golem has its own abilities and special perks.
Once per long rest you can summon a golem without any cost. (You can NOT control more then ONE golem this way, no matter how many levels you have in this class).
Golems summoned by you dont require concentration.
At 5th level, you can control up to 2 golems at the same time.
At 9th level, you can control up to 3 golems at the same time. 
Golems dont disappear once you are unconscious or dead, but they only can take orders while you are conscious. Otherwise they will move towards the character and then only use the dodge action.
You can also use your action and use any number of sorcery points to summon a golem (you can still can only control 1/2/3 [at 1st/5th/9th level] golems). Golems summoned this way have the exact same stat block and abilities, but their HP are calculated in a different way.

Golem:
Armor Class: 10 + Spellcasting Modifier
Hit Points: 5 + five times your Sorcerer Level (OR five times the amount of Sorcery Points used)
Speed: 30 ft.
Size: small 
Golems count as constructs, even though they are considered living beings.

Stats:
STR: equal to the character's Charisma stat
DEX: 8 (-1)
CON: 14 (+2)
INT: 10 (0)
WIS: 10 (0)
CHA: 10 (0)

Saving Throws:
STR: 1/2 PB (rounded down) + its own STR modifier
Senses: 60ft. Vision, Passive Perception 12
Languages: Terran

Types of Golems:
Ice, Rock, Steel
Actions:
Attacks deal 1d4/1d6/1d8/1d10 damage (1st/5th/11th/17th level) + PB PLUS 1d4/1d6/1d8/1d10 extra damage (specific to each golem) 
Pierce (Ice only): Melee weapon attack, STR+1/2 PB (rounded down) to hit, reach 5ft., one target. Hit: 1dX piercing damage + 1dX cold damage
Crush (Rock only): Melee weapon attack, STR+1/2 PB (rounded down) to hit, reach 5ft., one target. Hit: 1dX bludgeoning damage + 1dX force damage
Slash (Steel only): Melee weapon attack, STR+1/2 PB (rounded down) to hit, reach 5ft., one target. Hit: 1dX slashing damage + 1dX thunder damage

Care for the Golems

At 6th level, you gain the ability to heal existing golems. Using your bonus action and while in 5ft. of a golem, you can use any number of sorcery points to heal the golems HP by the number of sorcery points used times five. You cant exceed the golems maximum health points this way, also you only can use this feature onto one golem per bonus action.
Once per day, during a short or long rest, you can also use the Mending cantrip onto each golem you currently have summoned to heal them for your 2d6/3d6/4d6 + your charisma modifier. (Level 5/11/17).

Giga Golem Combination

At 14th level, your golems have the ability to combine into one greater golem.

Requirements: 3 different types of summoned golems
Cost: 1 Action
Giga-Golem:
Golem:
Armor Class: 13 + Spellcasting Modifier
Hit Points: equal to the remaining hit points of all three golems combined, hit point maximum is 15 + 15 times sorcerer level
Speed: 45 ft.
Size: medium
The Giga Golem counts as constructs, even though it also is considered a living being.
The Giga Golem counts as "three golems" towards the characters Golemancy feature.

Stats:
STR: equal to the characters charisma score
DEX: 12 (+1)
CON: 18 (+4)
INT: 14 (+2)
WIS: 14 (+2)
CHA: 14 (+2)

Saving Throws:
STR: its own strength modifier + PB
Senses: 100ft. Truesight, Passive Perception 16
Languages: Terran

The Giga-Golem also can be healed by the feature "Care for the Golems", but the healing modifier is "sorcery points used times 15" instead.

Actions: 
Radiant Starshot: Ranged Spell Attack, spell attack modifier to hit, reach 100 ft. one target. Hit: 3d8 radiant damage + spellattack modifier + 1d8 cold/force/thunder damage each.
Continental Blow: Melee Weapon attack, spell attack modifier to hit, reach 5ft., one target. Hit: 2d8 cold + 2d8 force + 2d8 thunder damage. On hit, target needs to roll a STR save equal to your characters spell save DC or is knocked prone.

Giga-Golem also has access to the attacks of its parts (Ice, Rock and Steel) and can either use Radiant Starshot, Continental Blow OR it can use one instance of EACH Pierce, Crush and Slash. Each of Pierce, Crush and Slash are rolled seperatly, using the damage die of Ice, Rock and Steel respectively, but can target different creatures. The to-hit modifier remains the spell attack modifier.

This damage of Radiant Starshot and Continental Blow is increased to d10s at 17th level.

Reaction: 
Saving Grace: If a character within 5ft. of the Giga-Golem is prone or unconscious and then targeted for an attack, Giga-Golem can use its reaction to take the hit for them. This only applies to single target attacks (melee as well as ranged weapon and spell attacks). 

Golem Armor

At 18th level, you can fuse with your Giga Golem, gaining additional benefits.
You gain temp HP equal to the HP of the Giga Golem, as it equips onto you as armor. 
Your AC is now equal to the AC the Giga Golem would have.
You gain access to the abilities of the Giga Golem and its parts (Radient Starshot, Continental Blow, Saving Grace as well as Pierce, Crush and Slash).
You can use this feature once per long rest, also you can expend 6 sorcery points to manually activate it. 
This transformation lasts for one minute, or until all of you lost all of your temp HP. 
You can restore temp HP via your bonus action and the Care for the Golems feature this way.