Having shadowheart 3 zombies (lvl 3 spell which is then cast as a lvl 4 for 3 zombies) and a Cambion with ~86 - 120hp
Astarion with 1 crow and the circlet of bones for undead blade ward(sometimes switching to better hat) ;; 1 skeleton archer
Dark urge has Cheeky Quasit, 4 ghouls

all the summons add up to roughly 700hp with 2 mercenary clerics in camp casting Aid / Warding Bond / Heroes Feast from Shadowheart

Slayer form+ Displacer beast 153 HP + ~85hp
Original form has 176 HP(+20 armour of agathys) and 24 AC (27 with mirror image which can also transfer unto the slayer form)

I think its a easy win for honor mode with this build.
You get full worms 24/25 ; so with Cull the weak, every enemies with less than 24 hp will instantly die

Illithid spells as bonus action

Also a nice little pre-buff is casting Shield of Faith from Shadowheart, unto Dark urge , wearing Viconia's Priestess Robe +2 saving throws ;
as long as the Shield of faith spell is active ; you can switch armor (Helldusk Armor proficient with heavy armor) and still retain the saving throws

+ AC from shield of faith = 27 AC
and reduced damage by 3 from helldusk armor
Adamantine Shield keeps you from having critical hits landed on you

+ mirror image 30 AC,
AC from mirror image is transfered unto slayer/displacer beast forms + BLUR as well

saving throws of
+ 12 STR + 8 DEX + 10 CON +4 INT + 12 WIS + 14 CHA

176 HP + 20 armour of agathys (Heroes Feast , Aid from mercenary cleric at camp , warding bond)
+153 HP slayer
+85 HP displacer beast
+ Roasted Dwarf leg meat from the goblin camp in act 1 ; which can heal you instantly , as much as 4-16 hp each in 1 turn , ~12 of them , only for dark urge

Hex + Eldritch blast + Agonizing blast(add CHA modifier) + Repelling Blast with Illithid Psychic damage from fall
Hex necrotic damage 1d6 on each Eldritch blast (3)

With Action Surge from fighter that's 6 eldritch blast of 7-16 dmg with 1d6 necrotifc damage

And the Hexblade Curse which reduce number needed to roll for critical hit by 1
(up to 5 in total ,
only need 14 and above to roll a critical hit , (20 being critical hit)
Knife of the undermountain king, Deadshot Bow, Fighter Champion, Spell Sniper , Hexblade Curse
And the Adamantine Shield keeps you from being critical hit yourself

Last edited by Sykarf; 16 hours ago.