Companion Pet: Arcane Companion

Origin Feat

You have some sort of small magical animal or creature that you have a close bond with. This creature is always by your side unless dismissed, and is always ready to try and help you out with its limited magical abilities. You can decide what form this Tiny or Small sized creature takes and what its personality is.

 You gain the following benefits.

The Arcane Companion has 2 different abilities that you can call upon on your turn using your Bonus Action. When you choose this feat choose a damage type: Fire, Frost, Lightning, Thunder, Acid, or Poison. 

Elemental Attack: Bonus Action attack. Range 30 feet. (Spell Attack Bonus or Ranged Attack Bonus) to hit. Damage: 1d4+Proficiency Bonus damage of the type chosen when you took this feat.

Protective Enchantment: As a Bonus action the Arcane companion can grant you a number of Temporary Hit Points equal to your Spell Attack or Ranged Attack bonus. You can use this ability Once per Long Rest.

When Dismissed or in danger your Arcane companion will become Invisible and keep out of the way. They may be able to speak short simple phrases in one language that you know (your choice), but do not have any information that you don't already know. (Except possibly what bugs or mice taste like, or the joys of getting scratched behind the ear.)

You and your Arcane companion are very good at working together to keep them safe while you are in dangerous situations. The Arcane companion cannot be attacked or injured, and if you are Incapacitated or Unconscious it will quickly become Invisible, run off and hide from danger somewhere nearby. If you are killed it will stay with your friends until such time as you are returned to life.