Ethereal Warrior

Homebrew Feat (Prerequisite : Horizon Walker Subclass)

You gain the following benefits 

Etherreal Warrior. If using the Etherrealism spell as part of your class ability you can end the spell at will without using an action. If you make an attack immediately after exiting the Ethereal plane you have advantage on the first attack you make. You can now use this ability equal to your proficiency bonus and regain only one charge on a short rest and full charges on a long rest. 

Planar Force. Your Planar Warrior damage dice becomes a d10 and can also push an enemy back 5 ft if you choose. 

Ethereal Adept. Your movement is no longer halved when moving through the ethereal plane only for your Ethereal Step ability.