The Deathknight

Taking the aspect of undeath onto oneself, this warlock has gained greater favour from their patron; The Runeblade granted to the barer of this blessing consumes the Warlocks life in order to grant them extreme power in return.

"The cold bit at Veronika's flesh as she fruitlessly clutched her failing armour to her broken and battered body; she could hear them behind her, the ravenous pursuit of the raiders behind her. The broken, battered and bedraggled woman would find herself stumbling upon a cave, sharp ice stalactites hung from the ceiling, seemingly decades old in length. Figuring the cover may give her a chance to hide the woman would limp into the dark, dimly lit cave - lit... How could it be lit? The woman was suddenly steeled, her body became numb to the cold, desperately drawing her deeper and deeper into the ice cave. Eventually, somehow renewed the woman would come upon a throne; ancient and brutal in it's appearance. Sat upon the throne was a skeletal body, in rusted, frozen plate armour. Taller and broader than any human she had known. In it's hand was a sword; her head filled with whispers, goading her forward, they told her to pick it up. Her body felt stronger and stronger, the closer she got. They promised great power... at such a small, cost less price... Her hand gripped the hilt. Pain and suffering fading, replaced with strength; renewed. One word filled her mind, thousands of voices in one - Vengeance."

Expanded Spell List

The Rune blade lets you choose from an expanded list of spells when you learn a warlock spell. The following spells are added to the warlock spell list for you:

Spell Level	Spells
1st	False Life, Inflict Wounds
2nd	Branding Smite, Blindness/Deafness
3rd	Blink, Animate Dead
4th	Blight, Phantasmal Killer
5th	Cone of Cold

Runecurse

Starting at 1st level, you gain the ability to place a mark on someone. As a bonus action, choose one creature you can see within 30 feet of you. The target is marked for 1 minute. The mark ends early if the target dies, you die, or you are incapacitated. Until the mark ends, you gain the following benefits:

• You gain a bonus to damage rolls against the marked target. The bonus equals your proficiency bonus.

• Any attack roll you make against the marked target is a critical hit on a roll of 19 or 20 on the d20.

• If the marked target dies, you regain hit points equal to {{modifier:cha+classlevel}}

You can’t use this feature again until you finish a short or long rest.

Runic Warrior

At 1st level, you acquire the training necessary to effectively arm yourself for battle. You gain proficiency with Heavy armor, Shields, and Martial Weapons.

The influence of your unknown patron also allows you to imbue a particular weapon with your required runes. Whenever you finish a long rest, you can touch one weapon that you are proficient with and that has the Two-handed or Versatile property and emblazon it with the runes of your patron. When you attack with that weapon, you can use your Charisma modifier - instead of Strength or Dexterity - for the attack and damage rolls. This benefit lasts until you finish a long rest. If you later gain the Pact of the Blade feature, this benefit extends to every pact weapon you conjure with that feature, no matter the weapon's type as the weapon manifests 

Furthermore, you are considered to be both Humanoid and Undead, however any friendly creatures may exclude you from spells and abilities that effect Undead

Rune Slots

At 6th level, you tap into a deep, ancient magic imbued within your Runeblade. This wellspring is represented by Rune Slots, which allow you to create a variety effects.

Rune Slots

You have 2 Rune Slots, and you gain more as you reach higher levels; 4 slots at Level 10, and 6 slots Level 14. You can never have more rune slots than allocated to your current level. You regain half your maximum rune slots on a short rest, and fully on a long rest.

At any point during your activation you may expend rune slots to cause the following effects:

Rune of Choking

Expend a single Rune slot, gain the ability to use the Death Grip feature even if there are no remaining charges for that feature

Rune of Arcana 

Expend a single Rune slot and gain the ability to cast a single spell as an extra Bonus Action.

Rune of Health

Expend a single Rune slot and gain {{modifier:cha}}D8 HP points back

Rune of Ice

Expend a single Rune slot and gain {{modifier:cha}}D4 Temporary HP Points

Apocalypse

Expend all remaining Rune slots, consume half your maximum HP (But you cannot be taken below 1 HP by this effect) and cast Eldritch blast a number of times equal to the number of Rune slots expended. Each cast of Eldritch Blast cast in this way is considered to be cast at the warlock's level. 

Rune slots expended in this manner are not recharged until the next time you take a long rest.

Death Grip

At level 6, you may harnesses the energy that surrounds and binds your ancient, eldritch weapon, drawing the target toward the Unholy blade and forcing the enemy back into the fray against the bloodthirsty blade spirit.

As a bonus action, choose a creature that you can see within 30 feet of you. It must make a Strength saving throw against your warlock spell save DC. On a failed save, it must immediately move directly towards you, provoking opportunity attacks.

You can’t use this feature again until you finish a short or long rest.

Runic Armour

At 10th level, your Runic blade begins to infect your armour; as dark frost begins to form over the skin of your armour you gain resistance to frost and +2 AC while you are wearing armour and wielding your Runic Blade.

Glacial Aura

Starting at 14th level, the power of your Runeblade begins to effect those around you. Enemies that start their turn within 10ft of you have their movement speed halved for the rest of the turn.