5e Giants and Empyreans

Here is how I would modify giants and empyreans:

Hill Giant

Hill giants are removed from my game.  Here is why:

i) I adopt a 4th edition approach to giants, as creatures originating from the Elemental Chaos.  Hill giants appear as nothing more than enormous, natural humanoids.  The other giants appearing in the 5e Monster Manual have more obvious ties to elemental origins.

ii) Hill giants are too similar to ogres.  Ogres have STR 19, INT 5 and wield greatclubs.  Hill giants have STR 21, INT 5 and wield greatclubs.  They both look like large, ugly humans (admittedly, fifth edition has made ogres even uglier), and only 3 challenge levels separate them, despite one being large and the other being huge.  By removing hill giants, the leap from ogres to giants is 5 challenge levels (2 to 7).

I would have ogres occasionally referred to as hill giants, as a misnomer, of course.  Ettins are born of ogres with the frequency of twins.

Stone Giant

Stone giants are hairless.

Senses darkvision 60ft., tremorsense 60ft., passive Perception 14

Damage Resistances: bludgeoning, piercing, and slashing damage from nonmagical weapons.

At will: Mending (stones and minerals only)
1/day each: Meld Into Stone, Stone Shape

Frost Giant

Their hair resembles frost.

1/day: Fire Shield (chill shield)

Greataxe (Hit: 25 (3d12 + 6) slashing damage plus 5 cold damage).

Rock (Hit: 28 (4d10 + 6) bludgeoning damage plus 5 cold damage).

Fire Giant

Their hair resembles embers.

1/day: Fire Shield (warm shield)

Greatsword (Hit: 28 (6d6 + 7) slashing damage plus 5 fire damage).

Rock (Hit: 29 (4d10 + 7) bludgeoning damage plus 5 fire damage).

Cloud Giant

Their skin is pearly white.  Their hair resembles cloudstuff.

At will: Feather Fall, Fog Cloud, Levitation
3/day each: Fly, Misty Step, Telekinesis
1/day each: Control Weather, Gaseous Form

Morningstar (Hit: 21 (3d8 + 8) piercing damage plus 5 thunder damage).

Storm Giant

I want to align storm giants closer to the water element, so as to provide a greater distinction from cloud giants (air element).  Storm giants have a deep sea green pigment.  Their hair resembles seaweed.  They live in or near oceans or enormous lakes.

At will: Create or Destroy Water, Water Walk
3/day each: Control Water, Tsunami, Water Breathing

Instead of a greatsword (Hit: 30 (6d6 + 9) slashing damage), a storm giants wields a trident (Hit: 20 (3d6 +9 or 23 (3d8 +9) if used with two hands to make a melee attack piercing damage plus 10 lightning damage).

Empyrean

At will: Create Food and Water, Greater Restoration
3/day each: Aura of Life, Aura of Purity
1/day each: Commune, Dispel Evil and Good, Divine Word, Plane Shift (self only), Raise Dead

Bolt (Hit: 24 (7d6) radiant damage).  This damage ignores resistance to radiant damage.

Druidcraft, Prestidigitation, and Thaumaturgy

These cantrips represent the most preliminary form of magic.  Any class that has any of these cantrips on their spell list as a first character level should get it as a bonus cantrip.  Note, however, that obtaining these cantrips via a feat or some other means does not qualify.

5e Racial Weapon Proficiencies and Exotic Armor

Some of my 5e changes:

Racial Weapon Proficiencies:

Dwarf

Dwarf Combat Training should replace the battleaxe and handaxe with the war pick. Dwarves are miners and smiths, not lumberjacks. Therefore, many dwarves naturally would have experience with hammers and picks, but not axes.

Elf

Elves favor weapons that exploit their superior dexterity (i.e., finesse weapons).

For High Elves, Elf Weapon Training should be renamed High Elf Weapon Training, and it should replace the longsword and shortsword with the rapier. High Elf fighters tend to be Eldritch Knights with the Dueling fighting style, so as to leave one hand free for spellcasting. High Elf rogues tend to be Arcane Tricksters.

For Wood Elves, Elf Weapon Training should be renamed Wood Elf Weapon Training, and it should replace the longsword and shortsword with the scimitar.

Drow Weapon Training should remove rapiers.

Half-Orc

Half Orcs should receive Orc Combat Training, which grants proficiency with the battleaxe and greataxe.

Exotic Armor:

Wood elves make exotic armors composed of (i) specially treated leaves (effectively leather armor), and (ii) a combination of specially treated leaves and specially treated bark (effectively studded leather armor). These armors generally are made in wood elven communities for use by wood elves, exclusively.  Wood elves do not teach this technique to other races.