If I told you everything, that would ruin the surprise
ah I will watch in anticipation
would you be able to add any more summons or necromancy spells or feats such as the following these are all canon
Spell List
3.0-3.5
Summon Undead 1-5
Revive Undead
Plague of Undead
Ghoul Gauntlet
Field of Ghouls
Awaken Undead
Mummy Dust
Awaken
Animate Objects
Animate Plants
Animal Growth
Animate Breath
Abyssal Army
Animate Fire
Animate Water
Animate Snow
Animate Wood
Augment Familiar
Awaken Construct
Awaken, Mass
Beget Bogun
Black Blade of Disaster
Bodak's Glare
Buzzing Bee
Bloodstar
Call Kolyarut
Call Zelekhut
Cocoon
Call Marut
Crawling Darkness
Curse of Lycanthropy
Decoy Image
Dire Hunger
Dinosaur Stampede
Dragon Ally
Dragon Ally, Greater
Dragon Ally, Lesser
Extract Water Elemental
Enhance Familiar
Fantastic Machine
Fantastic Machine, Greater
General of Undeath
Hellish Horde
Heavenly Host
Hungry Gizzard
Incorporeal Enhancement
Hunters of Hades
Infestation of Maggots
Incorporeal Nova
Iron Bones
Make Manifest
Life Bolt
Monstrous Thrall
Otyugh Swarm
Ooze Puppet
Panacea
Persistent Blade
Phantom Wolf
Phantom Stag
Phantom Foe
Phantasmal Decoy
Phantom Bear
Phantasmal Assailants
Phantasmal Thief
Plague of Rats
Planar Exchange
Planar Exchange, Greater
Planar Exchange, Lesser
Poison Vines
Puppeteer
Recitation
Renewal Pact
Rejuvenative Corpse
Rejuvenation Cocoon
Reveille
Revenance
Revive Outsider
Revive Undead
Revivify
Sarcophagus of Stone
Servant Horde
Seek Eternal Rest
Shadow Binding
Shadow Hand
Shadowy Grappler
Shroud of Undeath
Shieldbearer
Skull Watch
Skeletal Guard
Slime Wave
Spark of Life
Spectral Touch
Spectral Weapon
Spirit Worm
Spiritjaws
Spider Plague
Spider Curse
Spiritwall
Spider Shapes
Stabilize
Stalking Brand
Stalwart Pact
Stone Bones
Stone Spiders
Stolen Breath
Stonehold
Subvert Planar Essence
Sudden Stalagmite
Summon Babau Demon
Summon Bearded Devil
Summon Bralani Eladrin
Summon Elemental Monolith
Summon Elementite Swarm
Summon Elysian Thrush
Summon Greater Elemental
Summon Hound Archon
Sword of Darkness
Train Animal
True Creation
Treasure Scent
True Domination
Unbinding
Undead Lieutenant
Undead Bane Weapon
Undead Torch
Vile Death
Undermaster
Vigorous Circle
Vine Mine
Vipergout
Viscid Glob
Vitriolic Sphere
Wail of Doom
Wood Wose
Wither Limb
Withering Palm
Wracking Touch
Wrack
Word of Binding
Wraithstrike
Call Faithful Servants
Channel Greater Celestial
Channel Celestial
Dragon Cloud
Perfect Summons
Phoenix Fire
Sacred Guardian
Secure Corpse
Alert Bebilith
Bodak Birth
Call Dretch Horde
Call Nightmare
Call Lemure Horde
Boneblade
Boneblast
Consume Likeness
Death by Thorns
Despoil
Grim Revenge
Gutwrench
Spores of the Vrock
Utterdark
Armored Vermin
Dominate Vermin
Shadow Double
Oozepuppet
Spiritual Guardian
Ravenous Darkness
Summon Holy Symbol
Reanimation
Seed of Undeath
Seed of Undeath, Greater
Mordenkainen's Trusted Bloodhound
Bane Bow
Animate Weapon
Touch of the Graveborn
Call of the Twilight Defender
Dreaming Puppet
Call Forth the Beast
Rigor Mortis
Animate Legion
Animate Siege Weapon
Spiritual Cavalry
Spiritual Charger
Summon Pest Swarm
Bones of the Earth
Pact of Return
Blood Creepers
Crown of the Grave
Incite Riot
Summon Golem
Shadow Guardians
Phantom Guardians
Summon Dire Hawk
Summon Devoted Roc
Conjure Ice Beast 1-8
Conjure Ice Object
Entomb
Gelid Blood
Ice Assassin
Hibernate
Summon Giants
Aerial Summoning Dance
Animal Messenger
Animate Dread Warrior
Animate Instrument
Animate With the Spirit
Awaken Construct
Awaken Sand
Axiomatic Creature
Backbiter
Bedevil
Conjure Greater Midnight Construct
Conjure Lesser Midnight Construct
Conjure Midnight Construct
Create Darkenbeast
Create Crossroads and Backroad
Create Crawling Claw
Create Chosen One
Create Fetch
Create Ectoplasm
Create Greater Deathless
Create Greater Undead
Create Lantern Archon
Create Magic Tattoo
Create Trap
Create Undead
Create Deathless
Curse of the Elemental Lords
Curse of the Brute
Curse of Lycanthropy
Spirit Ally
Spirit Ally, Greater
Spirit Ally, Lesser
Spirit Binding
Spirit Binding, Greater
Spirit Binding, Lesser
Stasis Clone
Statue
Steal Summoning
Summon Clockwork Mender Swarm
Summon Desert Ally I-8
Terra Cotta Warrior
Summon Golem
Summon Greater Elemental
Summon Marked Homunculus
Summon Warforged Champion
Terra Cotta Lion
Watchful Ancestors
Feat List
3.0-3.5
Zone of Animation
Undead Mastery
Cloudy Conjuration
Fearsome Necromancy
Summon Elemental
Dragon Cohort
Dragon Familiar
Fiendish Summoning Specialist
Planar Familiar
Stalwart Planar Ally
Imbued Summoning
Ritual Blood Bonds
Beast Companion
Bind Elemental
Blood of the Warlord
Call of the Undying
Construct Grafter
Craft Construct
Craft Psionic Construct
Corpsecrafter
Corpse Malevolence
Necromantic Might
Necromantic Presence
Necropolis Born
Nimble Bones
Profane Vigor
Undead Leadership
Bolster Resistance
Deadly Chill
Destruction Retribution
Fell Animate
Fell Drain
Fell Frighten
Fell Weaken
Hardened Flesh
Heighten Turning
Stitched Flesh Familiar
also could the blackguard be given a undead squire
3?4: Lay on hands. Once per day, the blackguard can use this supernatural ability to cure himself or his fiendish servant of damage equal to his Charisma bonus × his level.
5?6: Sneak attack damage increased by +1d6. Smite good 2/day.
7?8: Fiendish summoning. Once per day, the blackguard can use a summon monster I spell to call forth an evil creature. For this spell, the caster level is double the blackguard?s class level.
9?10: Undead companion. In addition to the fiendish servant, the blackguard gains (at 5th level) a Medium-size skeleton or zombie as a companion. This companion cannot be turned or rebuked and gains all special bonuses as a fiendish servant when the blackguard gains levels. Smite good 3/day.
11 or more: Favored of the dark deities. Evil deities like nothing more than to see a pure heart corrupted, and thus a fallen paladin of this stature immediately gains a blackguard level for each level of paladin he trades in. For example, a character who has twelve levels of paladin can immediately become a 10th-level blackguard with all abilities if he chooses to lose ten levels of paladin. The character level of the character does not change. This, of course, is in every way a profitable trade for the evil character, since he has already lost most of the benefits he gained from having those paladin levels. However, with the loss of paladin levels, the character no longer gains as many extra abilities for being a fallen paladin. Thus, a fallen 15th-level paladin could become a 10th-level blackguard/5th-level paladin and gain the first three extra abilities on this chart because of the character?s remaining five levels of paladin. Smite good 4/day.
The Blackguard's Fiendish Servant
Upon or after reaching 5th level, a blackguard can call a fiendish bat, cat, dire rat, horse, pony, raven, or toad to serve him. (See the Monster Manual for these creatures? basic statistics.) This creature may be used as a guardian (such as a bat), a helper (such as a cat), or a mount (such as a horse). The blackguard?s servant further gains HD and special abilities based on the blackguard?s character level (see the table).
A blackguard may have only one fiendish servant at a time. Should the blackguard?s servant die, he may call for another one after a year and a day. The new fiendish servant has all the accumulated abilities due a servant of the blackguard?s current level.