The Mother and the Cauldron

You have been favored by the Mother and the Cauldron. No living soul has laid eyes on the Mother but you have heard her voice and felt her direction. You were once kidnapped and offered as a sacrifice to the cauldron. Through sheer will and a dormant power which awakened within you, you forcefully tore magic free from the Cauldron as you exited its depths. You later bargained with the Cauldron to restore all the magic you stole in exchange for preserving the lives of those you love. The Mother finding further favor in you, in that moment restored some of that power to you. As an unspoken bargain you must follow the direction and voice of the Mother no matter what or risk losing the power you use to protect your loved ones and any in need of protecting that your path may cross. You have also trained in various weapons and styles of fighting, so magic is not your only option, although it is your most powerful one. your magic usually manifests itself visually in the form of lightless silver flames. At higher levels these flames can be used with the proper materials to forge vorpal blades that can strike all creatures, even those immune to physical attacks.

Expanded Spell List

The Fiend 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.

Fiend Expanded Spells

Spell Level	Spells
1st	burning hands, command
2nd	blindness/deafness, scorching ray
3rd	fireball, stinking cloud
4th	fire shield, wall of fire
5th	flame strike, hallow

The Cauldron's Blessing

Starting at 1st level, when you reduce a hostile creature to 0 hit points, you gain temporary hit points equal to your Charisma modifier + your warlock level (minimum of 1).

Illyrian Training

Before becoming an adventurer you received training from the best and most experienced warriors around to help ensure you can defend yourself and anyone who may be in need of your protection, especially those you care about. This is part of what earned you the Mother's favor. Plus you look darn good in the fighting leathers you trained in. 

The Mother's Favor

Starting at 6th level, you can call on the Mother to grant guidance or aid you in performing your abilities. When you make an ability check or a saving throw, you can use this feature to reroll with advantage. You can do so after seeing the roll but before the effects occur. If you were making an ability check the Mother (DM) may at times also prompt you to not perform the action. If prompted not to act and you heed the Mother's voice, it's as if no action occurred. If you decide to ignore the Mother's guidance you may still reroll your ability check, but without advantage. A reroll of 10 or lower is considered a critical failure if ignoring the Mother's guidance.

Once you use this feature, you can’t use it again until you finish a long rest.

Imbued with Silver Flames

You gain the ability to grant your silver flames to objects. You can choose to imbue one weapon or item held by you or a party member. A weapon becomes magical, if not already, and gains the Tier 1 Silver Flames attribute. An item becomes magical, if not already, but may or may not gain any further qualities. Silver flames are the Mother's power of Creation and Destruction, Life and Death. Any additional qualities that an item may gain, are gained according to the will of the Mother (DM) and must be qualities of Life/Creation or Death/Destruction. This ability acts like a spell but does not use a spell slot. It requires your spell concentration to maintain it and ends after 2 hours or when your concentration is broken, whichever happens first, at which point the flames extinguish. A weapon or item imbued with Silver Flames returns to it original state once the flames are extinguished. You may use this ability again after a short or long rest.

Tier1 Silver Flames: Attacks from the selected weapon ignores any resistances. This has no effect on creatures or objects that are immune to the weapon's damage unless the immunity was due to the weapon not being magical in nature.

Glimpse The Cauldron

Starting at 14th level, when you hit a creature with an attack, you can use this feature to instantly engulf the target in silver flames and ensnare the target's mind in vision's from inside the Cauldron's waters. The target cannot make reactions or attacks of opportunity but can also no longer be attacked.

At the beginning of the target's next turn,  the flames are extinguished and if the target is not a fey, it must roll a WIS saving throw, with a saving equal to your Charisma + Ability Modifier, or take 10d10 psychic damage. On a successful save the damage taken is halved.

Once you use this feature, you can’t use it again until you finish a long rest.