As part of your oath, you work with the spirits of the world calling them to your side and protecting them.You channel the heart of the world to bring balance through the spirits and if you work together nature is off great balance.

oath of the ethereal spells

oath of the ethereal spell list

spell level spells

1st           find familiar,faerie fire
2nd          flock of familiars,summon beast
3rd          spirit guardians,summon fey
4th          summon elemental,conjure woodland beings
5th          summon celestial,wrath of nature

 

channel divinties

When you take this oath at 3rd Level, you gain the following two Channel Divinity options.

aura of balance

Starting at 7th level, you project an aura of balancing power.Creatures within the aura cannot gain disadvantage or advantage on saving throws, attack rolls or ability checks.Creatures under the effect of empower spirit or summoned using one of your paladin spells can still gain advantage.At 18th level, the aura increases to 30ft.

gift of the spirits

Starting at 15th level,You gain a charm of your choice.When you expend the charm you gain another one of your choice.

one with the world

Starting at 20th level, you have become a true channel for spirits and the ones who come to you are among the greatest.You gain the following benefits:

.Whenever a creature effected by empower spirit or summoned by one of your paladin spells drops to 0 hp, you can use your reaction to return them to 1 hp and allow them to take an action or move up to their speed without provoking attacks.

.As an action, you can drop a creature you summoned to 0hp you regain hp equal to twice the cr of the dropped creature and you gain advantage on the next attack roll before the end of your next turn

.creatures you summon are healed twice as much hp from your paladin spells