Royal Toxótēs

Not all Rangers come from the dregs of society hunting animals to survive, many nobles and aristocratic who prefer a more active lifestyle, may spend long periods of time on hunting trips in search of wild game and exotic creatures to hunt for sport. While many of these nobles will eventually leave this pass time to become more prestigious knights and champion fighters, others whether through natural talent with the bow or make a deeper connection with land which they hunt on may become a Royal Toxótēs, mighty archers who excel in skirmish and ranged combat, turning what some would see as common short bow used for hunting game, into a weapon of war that surpasses the longbow in all but range.

Level 3: Mark of Royalty

At 3rd level nature acknowledges your royal heritage and grants you a special mark that subconsciously assists you in targeting your prey, allowing you maintain better awareness of your surroundings and utilize more effective methods of hunting. Hunters Mark no longer requires concentration and its range is doubled. Additionally when you reach level 13 the affects of Relentless Hunter now apply to all concentration spells on your ranger spell list.

Level 3: Weapons of the Toxotai

You know how to bring out your weapons maximum potential, but it also helps that the spirit of an legendary archer enhanced their capabilities far passed their normal limitations.
Enhanced Short Bow: 
The damage dice of Short Bows becomes 1d10 rather than 1d6. This weapons damage dice increases by 1d10 when you reach 11th level (2d10).
additionally its range is increased to 90 short range and 360 long range
Enhanced Short Sword: 
The damage dice of Short Swords becomes 1d10 rather than 1d6. This weapons damage dice increases by 1d10 when you reach 11th level (2d10).
Skirmishers Shield:
While you have a shield is equipped, ranged weapon attacks targeting you are made with disadvantage.

Level 7: Noble Pursuit

Through brush and over caltrops, you pursue your quarry with unimpeded steps. You gain the following benefits:
Moving through both magical and nonmagical difficult terrain costs you no extra movement. 
Additionally, You have advantage on saving throws made to avoid or resist traps and have resistance to the damage dealt by traps.
As long as you are not wearing heavy or medium armor, you have a swimming speed and a climbing speed equal to your normal speed, and you gain a +1 bonus to armor class. Additionally you gain advantage on performance and survival checks

Level 11: Eternal Duty

You are given a special a elixir by the spirit of a fallen Toxotes
The elixir causes your body to stop aging, permanently maintaining your bodys current appearance, making you immune to the effects of aging and unable to die of old age.
Additionally you are immune to non-magical diseases and gain proficiency in Constitution Saving Throws. 

The effects of the elixir are can not be reversed. You are also unable to multi-class out of ranger anymore, if you are already multi-classed you can no longer add levels to those classes.
Magic items can no longer increase your ability scores 

Level 15: Odyssean Archer

Mark of Royalty Improvement
Your Royal Hunters Marks gain further improvements, you now mark up to 3 different targets at once with Hunters Marks, additionally creatures damaged by your Hunters Marks taken an additional dice of force damage. You also ignore resistances to damage and treat damage immunity as damage resistance on the marked creatures instead.
Odyssean Accuracy 
If your attack rolls miss a creature, you can deal damage to that creature equal to the ability modifier you used to make the attack roll. If the creature is wielding a shield this damage is negated.