semblance

With semblance you have gained the mastery to summon you slain foes, in order to have them by your side. they will apprear white blueissh and are like a kind of spirit who will obey your command, these spirits will do their action after you finished your action. these spirits will assist you for 1 min after descending back into your rapier. once you get your level 6 spells you have a chance to summon you forgotten gaurdian arma gigas.

after defeating a foe, you will gain the oppurtunity to summon this as an action in it's spirit form. it has its stats as it had in it's original form.

summoning your semblance costs a spell slot of any kind, the spell slot lvl is determined by the CR of the spirit you want to summon as found below in this stat block.

1st lvl cr1/8 

2nd lvl cr1/2 

3rd lvl cr1 

4th lvl cr2

5th lvl cr 3

6th lvl cr 4 (arma gigas)

7th lvl cr 5  

8th lvl cr 6

9th lvl cr 7

you can cast this a number of times equal to you intelligence modifier (min of 1) where your spell slot equalls a slot in this feat.

arma gigas

Large spirit, neutral

Armor Class 17 (natural armor)
Hit Points 110 
Speed 30 ft., burrow 30 ft.

Damage Vulnerabilities necrotic
Damage Resistances bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities poison
Condition Immunities exhaustion, poisoned, unconscious
Senses darkvision 60 ft., tremorsense 60 ft., passive Perception 10
Languages celestial
Challenge 4 

.

Actions

Multiattack. arma gigas makes two great sword attacks attacks.
greatsword. Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 12 (2d6 + 5) bludgeoning damage.