Animate Hero

(Caster beware Hero does not necessarily mean good guy)

You call forth a hero of old at the height of their power to aid you (If you know a Hero's true name you can call that person without fail, if you call them by their proper first and last name you have a 75% chance to call the correct hero, if you call them by their title (if they had / have one) you have a 50% to call the correct hero, in all other cases a random hero is called).

You can communicate with the Hero telepathically at all times.

The gem used in the cast is implanted in the hero's forehead and has has 50 hp, if it is destroyed the hero's body and equipment crumble to dust; you may also spend one min concentrating and destroy the gem magically regardless of your location. (The gem is treated and a worn item and cannot take damage unless targeted specifically or the hero takes more damage than they have health.  

The summoned hero is themselves and acts in accordance with their will and personality however you can exert limited control over them, as a bonus action you can give the hero an order. If they refuse the hero must make a CHR save that is equal to 18 or your spell DC whichever is higher. On a success the hero is unaffected. on a failed save the hero is magically compelled to carry out the order to the best of there ability as long as you maintain concentration. (If the spell was cast by a wizard that has the necromancy arcane tradition the hero has disadvantage against this affect).