Devil Binder[]
@1: Acolyte Binder: You gain Prof in Linguistics, the language Legalese and You are capable of creating and maintaining basic summoning circles attuned to Tartarus and its denizens as the ritual spell Fiendish Bargaining Circle. To open the connection to Tartarus of its connected realms you require each of the following; Sulfur, Ashes of the dead, and a token denoting your intended realm of contact if you have one. This is an 8 hour ritual and must be done without interruption. Once the connection is opened you must use the true name of the Devil you intend to summon, if the devil is of a higher rank than those that are compelled by you they must be enticed. Enticing a devil is a wildly varying affair depending entirely on the inclination of your target devil. eg A Barbed devil would be enticed with the sacrifice of expensive commodities into his portal while a Chain devil may be more enticed by the cries of the tortured or a wounded sacrifice awaiting them within the circle.
Binder DC = 8 + ((Cha)) + Prof
@1:Infernal Symbiosis: You may, after drafting up an Fiendish Agreement containing the devils true name as well as particulars such as payment type, duration of binding and the powers you want from said devil. You may channel one feature, abilities score or power the devil is capable of and for the duration of your bound period you take on traits marking you obviously out as imbued. You may gain one ability from your bound Devil per Devil Binder level.
If you work towards ends counter to your bound devils interests it may make an attempt to lash out and make its will known, after making a Cha check against your Binder DC, on a failure the devil is incapable of making any actions and is incapable of making another attempt for 1d6 hours.
On a success the Devil may lash out with any of its abilities using your own body as the source as if it were it's own, and may due so each round until you succeed on a Cha-caster contest with the bound devil.
To dismiss a devil bound to you who's willing to depart you may focus your power and cast them back to Tartarus through your connection to the plane. But a devil who does not wish to depart is more difficult. You must concentrate and channel your power and focus as a full round action to make a Cha-caster contest against said devil, you must win 2 rounds of contest in a row and the devil is fully cast back out of you to Tartarus. But if the devil succeeds on beating you 2 rounds of contest in a row they take their chance and force you to make a Cha save against the devil, on a failure the devil gains control of your body until you pass the save (may make save each hour), on a failure of 10 or more under the devils DC it may unleash itself freely onto the Material and undue the bindings of your previous contract.
@1: Touch of Tartarus: You are touched, and marked, by the magics that infuse Tartarus itself granting you rank within those fell realms, the greater power behind your ability to compel Devils to your word. You have the Outsider(lawful evil) subtype and may cast Inflict Wounds once per short rest at your highest available spell slot (base if noncaster), may continue to use this after its expended but you must make a Con save against your own DC, on a failure you take equal damage to your target, on a save you take half.
@2: Friend of Fiends: You become immune to the "natural" phenomena of the planes of Tartarus (poisonous air and radiant energy for example), you gain a +3 when making CHA checks against/at Fiends or Devil worshippers and whenever dealing with Devils or Fiends within a bargaining circle and you are speaking truthfully with intent to uphold your end of the bargain the other party will hear you out even if the offer seems outlandish at first. This doesn't mean they will automatically accept your deals, only that they will hear you out, they may find your deal unsatisfactory, simply uninteresting, or simply below them.
@3 Wolf in Sheeps Clothing : You may spend an action suppressing all of your outward signs of possession or fiendish corruption, altho it remains visible to anyone with True Sight. You gain no benefits from your bound abilities until you spend another action to activate your abilities once again. Additionally, while your powers are suppressed you may cast Disguise Self as a spell life ability.
@4: Claimed Authority : You may channel the authority and hierarchal might of whatever Devil you currently have bound to yourself when dealing with other Fiends you may attempt to cast Command as a spell like ability up to your CHA mod times per long rest, but only on Fiends of lower ranking than the one you are bound to. You may also cause Fear on one target you can see within 30' based off your CHA DC once per short rest.
@5: Retainer Contracts : Any new contract you make contains a retainer clause where at minimum you are capable of contacting them at any time as a spell like ability that requires sustained concentration, through the use of the devils true name to speak, deal in information or open new bargains, like the spell Contact Planes . Additionally you may use this power to exchange your currently bound Devil with one you've already made a bargain with as part of a short rest.