If you are like me, you were really hoping for a pet build for the druid. This is actually an excerpt for a yet to be announced project I am working on. Stay tuned!

Circle Of The Wild Call
You invoke the spirits of the wild to head your call, and when it does, it answers with a fierce champion that guards your flank and attacks your enemies.

Gift of Music
At 2nd level, you gain proficiency with one type of musical instrument of your choice.

Summon Beast Guardian
At 2nd level, you can use your music to call forth a fey animal guardian to fight by your side. Choose one beast that has a challenge rating of 1/4 or lower (Appendix D in the Player’s Handbook presents statistics for the hawk, mastiff, and panther as examples). You can summon the creature with an action and it appears in an unoccupied space within 10 feet. The creature is considered fey, and it disappears when it drops to 0 hit points or after 1 hour. The summoned creature is friendly to you and your companions. You roll initiative for the summoned creature and it has its own turn. It obeys any verbal commands that you issue to it (no action required by you). If you don’t issue any commands to it, it will defend itself from hostile creatures, but otherwise takes no actions.

The challenge rating of the creature you can summon increases as you gain levels, as shown on the Animal Guardian table. Once you use this feature, you can’t use it again until you finish a short or long rest.

Guardian Senses
At 6th level, you can see and hear through your spirit guardian for up to 1 mile. During this time however, you are deaf and blind with regard to your own senses.

Fierce Guardian
At 10th level, your beast guardian can use its reaction to make an attack against an enemy that has dealt damage to you.

Shared Spells
Beginning at 14th level, when you cast a spell targeting yourself, you can also affect your beast guardian with the spell if the beast is within 30 feet of you.