Warforged Statblocks - Balance advice and CR?

[Protato]

I decided to make some Warforged statblocks for NPC fighters. One of the party members in my LMoP game is a Warforged Eldritch Knight and may yet meet more Warforged. My current plan is to have the some Warforged acting as elite soldiers built by/are working on the side of the Zhentarim, who I plan to have as villains. Worth noting is, in my game, there are regular Warforged (Juggernaut/Envoy/Skirmisher types) and the magically enhanced "Valkyrie" line (Which my party's Eldritch Knight is one of). Without further ado, the statblocks are presented in the spoilers below. Apologies if the formatting is a bit odd but I hope it gets the point across. The first one is Juggernaut, second is Envoy, third is Skirmisher.

Juggernaut Warforged

Core Stats

Medium Unaligned Construct/Humanoid (both categories)

150 HP, 20 AC Natural Armor

Speed 25

Str18/Dex10/Con16/8Int/12Wis/8Chr

+7Str Saves, +4DexSaves, + 6Con Saves.

8 Athletics, 4 Intimidation

Resists Nonmagic Weapons

Immune to Poison damage and status ailment, exhaustion, sleep, poison.

Understand Common but doesn't speak and only follows orders.

Actions/Effects

Three weapon attacks + One unarmed attack

Grapple check upon unarmed attack.

Battleaxe
+9 to hit, 2d12+4 (17) Slash.

Unarmed Attack
+9 to hit, 2d4+4 (9) Blunt.

Stabilized Darts

+9 to hit, 2d4+4 (9) Pierce. 30/70ft.

Knife

+9 to hit, 2d4+4 (9) Pierce. 20/60ft.

Envoy Warforged

Core Stats

Medium Unaligned Construct/Humanoid (both categories)

120HP, 20 AC Natural Armor + Shield

Speed 30ft., Climb 30ft., Swim 30ft.

16Str/14Dex/12Con/10Int/12Wis/8Chr

Acrobatics 6, Athletics 7, Perception 1

+5Str Saves, +4Dex Saves, +3Con Saves, +3Wis saves

Resists Nonmagic Weapons

Immune to Poison damage and status ailment, exhaustion, sleep, poison.

Understand Common but doesn't speak and only follows orders.

Actions/Effects/Reactions

Precise Attack 2/Day, add 1d10 to attack roll

Disarm 1/Day, DC15 Strength or Dexterity check from target or else they drop what's being held

Riposte 1/Day, reduce melee damage by 1d10+2 as a reaction

Parry 1/Day, make a weapon attack as a reaction to a melee attack and add 1d10 to the damage upon a hit

Waterproofed and does not sink underwater.

+2 damage on one handed weapons (Dueling)

Critical hits on 19 and 20

Three attacks

Waraxe
+8 to hit, 2d10+5 (16) Slash.

Shortbow
+7 to hit, 2d6+2 (9) Pierce. 150/300ft.

Skirmisher Warforged

Core Stats

80HP, 17 AC Natural Armor

35ft. Speed

8Str/18Dex/12Con/12Int/10Wis/8Chr

+8Dex Saves

Acrobatics 8, Stealth 8, Sleight of Hand 8

Resists Nonmagic Weapons

Immune to Poison damage and status ailment, exhaustion, sleep, poison.

Understand Common but doesn't speak and only follows orders.

Actions/Effects

Cunning Action, hide/disengage/dash as bonus action

Sneak attack for an extra 4d6 (14) damage.

Walks silently when making Stealth checks

Three attacks + Dual wielded Poisoned Shortsword

Poisoned Knife
+9 to hit, 2d4+4 (9) Pierce, 2d6 (7) Poison. DC10 Constitution saving throw for half Posion damage. 20/60ft.

Poisoned Longbow
+9 to hit, 2d8+4 (13) Pierce, 2d6 (7) Poison. DC10 Constitution saving throw for half Posion damage. 150/600ft.

Poisoned Shortsword
+9 to hit, 2d6+4 (11) Pierce, 2d6 (7) Poison. DC10 Constitution saving throw for half Posion damage.

Bonus Action Shortsword
+9 to hit, 2d6 (7) Pierce, 2d6 (7) Poison. DC10 Constitution saving throw for half Posion damage.

[Plantae]

Here's my CR calculations.


Defensive CR
150 HP, x1.5 based on resistances/immunity = 225 effective HP = base defensive CR 11
+3 AC above base = defensive CR 12
+3 saving throw proficiencies = defensive CR 13

Offensive CR
Three Battleaxe attacks, 17 average damage each and one unarmed attack, 9 average damage = 60 DPR = base offensive CR 9
+2 attack bonus above base = offensive CR 10

Total CR (average) = 12

This might even be slightly higher. Compare to the Gray Render (also CR 12).


Defensive CR
120 HP, x1.5 based on resistances/immunity = 180 effective HP = base defensive CR 8
+4 AC above base = defensive CR 10
+4 saving throw proficiencies = defensive CR 11

Offensive CR
Three Waraxe attacks, 16 average damage each and one unarmed attack = 58 DPR = base offensive CR 9

Total CR (average) = 10

Defensive CR
80 HP, x1.5 based on resistances/immunity = 120 effective HP = base defensive CR 4
+3 AC above base = defensive CR 5

Offensive CR
Three shortsword attacks, 18 average damage each and one off-hand shortsword attack, 14 average damage, and 14 sneak attack damage = 82 DPR = base offensive CR 13

Total CR (average) = 9

I might be mistaken on the offensive CR here, depending on how you wanted the attacks to work. But if it can use the shortsword for every attack, then this creature is very deadly.