Heroic Setting

Hero Points
Hero points work well in epic fantasy and mythic campaigns in which the characters are meant to be more like superheroes than the average adventurer is. With this option, a character starts with 5 hero points at 1st level. Each time the character gains a level, he or she loses any unspent hero points and gains a new total equal to 5 + half the character's level.
A player can spend a hero point whenever he or she makes an attack roll, an ability check, or a saving throw. The player can spend the hero point before the roll is made for Advantage. Optionally, after the roll, but before any of its results are applied, a hero point allows the player to roll their proficiency die and add it to the d20, possibly turning a failure into a success. A player can spend only 1 hero point per roll. In addition, whenever a character fails a death saving throw, the player can spend one hero point to turn the failure into a success, or, to roll instead of taking an automatic failure.
Rest Variant
Epic Heroism
This variant uses a short rest of 10 minutes and a long rest of 2 hours. This change makes combat more routine, since characters can easily recover from every battle. Spellcasters restore expended spell slots equal to only half their maximum spell slots (rounded down) at the end of a long rest, and spell slots restored are limited to 5th level or lower. Only a full 8-hour rest will allow a spellcaster to restore all spell slots and to regain spell slots of 6th level or higher.