The Solver

After being approached by another victim of this digital horror, you find yourself suddenly awakened, with new found power inside you. This pact is not one you got to choose, but like many other things, you must live with it. Perhaps you can make use of it aswell?

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	Silent Image, Grease
2nd	Alter Self, Blur
3rd	Blink, Call Lightning
4th	Fabricate, Polymorph
5th	Telekinesis, Creation

Biological Assimilation

Starting at 1st level, when you reduce a creature (Who's CR is less than or equal to half your level [rounded down]) to 0 hit points, you may temporarily steal one action or feature from the target, lasting until you next long rest.

Solver Wings

Starting at 6th level, you permanently gain fleshy wings attached to your back, granting you 40ft of flight speed.

Murder Drone

After reducing a hostile creature to 0 heath points, you may instantly move to another creature within a 40ft range, even if that creature is obscured by a non-magical barrier. After you have made this movement, you gain a +1 to hitting that target with melee attacks, and may make an additional melee attack against it. If this second melee attack kills the target, you may activate this ability again, and jump to another target within 40ft, this time with a +2 to hit. Each time you reactivate this ability within the same turn, you gain an additional +1 to hitting that target. Once this chain ends, the hit bonus against the target remains, however the chain will be reset to +1 to hit upon activating the ability again.

Skin Walker

Starting at 14th level, When you reduce a creature to 0 hitpoints and activate your Biological Assimilation trait, you may instead change into that creature, given its size is the same. While activated, you have access to all the traits and abilities of that creature, as well as it's Strength, Endurance, and Dexterity stats (functioning similarly to a druid's wildshape), this also includes AC. In addition, you may speak and cast spells normally while in this form. This ability lasts until you are reduced to 0 hitpoints, or until you use the ability again.