Legendary Rebirth

You possess the reincarnated soul of a magical warrior from ages past. They may have been an Elven Bladesinger, an Eldritch Knight, a Paladin etc. Perhaps you are the first rebirth or one in a long line of succession.

 

Innate Talent

At 1st level, certain weapons, armor and tools have always felt right in your hands. Even without training you find yourself able use that equipment with an expert hand. You gain proficiency in one weapon of your choice, Light Armour and Medium Armour. You also gain one Tool proficiency of your choice.

Memories of Battles Past

Also at 1st Level, during battle you can call upon the memories of battles fought by your legendary ancestor. As a bonus action on your turn, you can expend a memory to make it so that your subsequent weapon attacks on that turn score a critical hit on a roll of 18-20. This increases to 16-20 at 6th level, to 14-20 at 14th level and to 12-20 at 18th level. Also, as a reaction, when hit by an attack, you can expend a memory to make that attack miss unless it was a critical hit, in which case it becomes a normal hit instead. You have a number of memories equal to your Charisma modifier and regain all spent memories on a long rest.

Ancestral Prowess

At 6th Level, you've gained the ability to call upon the skill of your legendary ancestor in combat. You can attack twice instead of once when you take the attack action on your turn. Also, once per turn you can spend two sorcery points to add one additional extra attack to your attack action.

Not This Time!

At 14th Level, memories of the failures or deaths of your predecessors haunt you and implore you to not let the same fate befall you. You gain proficiency in the saving throw of your choice. Additionally, when you fail a saving throw, you can use your reaction to spend 5 sorcery points to succeed on the saving throw instead.

Might of Legacy

At 18th level, you are able to bring out the true essence of your legendary ancestor to turn you into an almost unbeatable warrior. At the start of your turn you can choose to gain 50 temporary hit points, also you become immune to slashing, piercing, and bludgeoning damage for 1 minute. Once you have used this feature you cannot do so again until you finish a long rest.