The Arcanaloth

rcanaloth, or perhaps one that was disguised as an archmage wanted to strike a deal. You wanted to learn, and now you will. 

Expanded Spell List

The Arcanaloth has gifted you some of its own vast knowledge of spells. 

The following spells are added to the warlock spell list for you.

 

Arcanaloth's Voice

At 1st level, the Arcanaloth has gifted you a tiny amount of its linguistic knowledge. You learn how to speak, read, and write three languages of your choice. Whenever you finsih a long rest, you can change one language to a diffrent one. 

Arcanaloth's Tongue

At 1st level, the Arcnanloth has gifted you a portion of its diplomatic abilites. You gain proficeincy in Persuasion and Deception. You also gain expeteise in one of those skills. You cannot benefit from expertise more than once, like from the Rouge's expertise. 

Knowledge Is Power

At 6th level, your patron gifts you with even more knowledge. You gain proficency in Arcana if you don't already have it, and you cannot misplace anything you have written down or made an agreement about. For example, if you make a deal with a goblin gang to stay away from a town, yiu cannot misplace it and know exactly where the written deal is, as long is it is on the same plane of existance. 

 

In addition, your patron has spread knowledge about you to other Yugoloths. Yugoloths are no longer hostike to you,  unless you attack them. 

Arcane Encyclopedia

At 10h level, your knowledge of magical facts and secrets have become so vast that almost nothing is unknown to you. When you roll a d20 for an Arcana check and get a roll lowe than a 10, you can treat that roll as a 10. Also, you have the option of growing a pair of jackal ears or a jackal tail, as the Arcanaloth's magical influence changes you. 

Planar Swap

At 14th level, you have formed such a bond with your patron it can aid you in battle. As an action, you can swap places with an Arcanaloth for 1 minute. You control the Arcanaloth, and it has the same stats and spell list as in the Monster Manual. If it dies before one minute is up, you instantly teleport back in the same place you left from. You can also use this ability when you drop to 0 hit points. You make death saving throws as normal,and if you die the Arcanaloth persists for the full duration.