Beginning at the 1st level, you can see and speak with spirits. You can see up to 60 ft into the Ethereal Plane while in the Material Plane, and vice versa. You can also gain some benefits after communing with nature for 1 minute.
When you forage alone, you find twice as much as you normally would.
You can move stealthily at a normal pace.
You are aware of recent events in the region, like storms, landslides, etc.
At level 10 you are able to detect the presence of spirits even at great distances. As an action you allow your connection to the ethereal plane to guide your senses to these creatures. For 10 minutes you know the location of any creature of the undead type within 100 ft of you. With another action you can increase your focus and learn 2 things:
The exact number of creatures you're sensing.
You gain a glimpse of their power. The DM gives tells you if the creature is: weak (CR 0 to 1), average (CR 2 to 4), strong (CR 5 to 9), powerful (CR 10 to 15), fearsome (CR 15 to 20), terrifying (CR 21 to 26), monstrous (CR 27 to 30).
You can use this feature once per short or long rest.
Your spirit gains a more physical form, the aura around you becoming denser. Your spirit's attacks' damage type becomes force damage. And you can spend spell slots to increase this damage. You gain 1 more dice of damage per level of spell slot used this way (black bear's bite with a 4th level spell slot would deal 5d6 force damage, instead of the normal 1d6). This increase in damage lasts until the end of your current turn.
You channel primal magic to cause your teeth or fingernails to sharpen, ready to deliver a corrosive attack. Make a melee spell attack against one creature within 5 feet of you. On a hit, the target takes 1d10 acid damage. After you make the attack, your teeth or fingernails return to normal.
The spell's damage increases by 1d10 when you reach 5th level (2d10), 11th level (3d10), a nd 17th level (4d10).