I decided to make a sample character, and in doing so I came across a few issues. GKEnialb already brought up a couple of them; I'll go into others when doing the survey. But here's my sample character (note: ex. means expertise die). (Now with added Archetype abilities!)
Oleander
Female Tiefling Bard 6, College of Whispers
Str 10 (+0), Dex 14 (+2), Con 8 (-1), Int 14 (+2), Wis 14 (+2), Cha 16 (+3)
• Hit Dice: 6d8.
• Hit Points: 32 hp.
• Speed: 30 ft.
• Skills: Acrobatics +5, Deception +4, History +5 (ex.), Investigation +4 (ex.), Perception +5, Persuasion +6 (ex.), Sleight of Hand +5. In addition, I can add +1 to any skill check if I’m not proficient in the skill (Class).
• Tool Proficiencies: gaming set (mancala; Origin), flute, dulcimer (ex.). I came up with an expanded equipment list ages ago for my table, and mancala was one of the potential gaming sets (along with pacheesi and go--I'm too lazy to come up with fantasy names for them).
• Weapons and Armor Proficiencies: Light armor. Simple weapons, hand crossbows, longswords, rapiers, shortswords
• Save Proficiencies: Dex +4, Cha +6
• Darkvision 60 ft.
• Resistance to fire damage.
Traits
Art Specialty: Stringed Instruments: Whenever I cast a bard spell from the movement or teleportation school, I can target an additional creature within 15 feet of me. I can switch the speciality by using a bonus action; once I have done so, I can’t do so again until I complete a short or long rest. (Class)
Bardic Inspiration Dice: Three d8s. I regain all uses when I finish a short rest.
Bardic Legend: If I enter a town and spend a day recounting my epic tale, my reputation, and that of my allies, grows, and if we rest in that town, we regain all spent hit dice over the course of a long rest. (Class)
Battle Hymns: I can expend a Bardic Inspiration die to perform a battle hymb. Harmony of Pain: up to three creature within 60 feet gain 3 temp hp. Doomsayer: up to three hostile creatures within 30 feet takes -1d6 on attack rolls. My battle hymns don’t require concentration (can only maintain one hymn at a time); I can use my reaction to activate a hymn without using a BI. (Class)
Connections: A charlatan who is an ex-lover (Origin). My treacherous brother, who killed many of our family and caused the rest to flee our ancestral home (Background).
Cursed: can communicate telepathically within 30 ft.; recipients can’t respond. (Heritage)
Discretely Armed: I have advantage on checks made to Persuade others to let me remain armed. I can use passive Stealth to hide certain things under my clothes: armor in which I’m proficient, one-handed weapons, and items that require only one hand to use. (Origin)
Fashion Sense: If I can observe a creature within 60 feet for 1 minute and make either an Insight or History check vs. its Deception, I can learn: if it has a lower Cha than mine, its culture or national origin, and its social standing relative to mine. (Origin)
High Society: I know most of the noble families for hundreds of miles. In civilized areas, I can find a noble host who will house me for a time. (Background)
Knacks: Sly Confidant: expertise die with Persuasion; also when I succeed on an opposed Int, Wis, or Cha check, I gain advantage on next check of same time against same creature. Townie: expertise die with History; also I get 33% discount on basic goods and spellcasting components, as long as I have a positive reputation in a town or city. (Class)
Mantle of Whispers (1/rest): When a humanoid dies within 30 feet of me, I can use my reaction to capture its shadow, which lasts until I use it or complete a long rest. I can use my action to disguise myself as the humanoid for 1 hour, and during this time, I know the general information that it knows, but not any dark secrets. A creature can see through this disguise by succeeding on a Wisdom (Insight) check versus my Charisma (Deception), but I have +5 to my check. (Archetype)
Psychic Blades (1/turn): When I hit a creature, I can expend one use of Bardic Inspiration to inflict an extra 3d6 psychic damage. (Archetype)
Words of Teror (1/rest): If I speak to a humanoid alone for at least 1 minute, I can make it make a DC 14 Wisdom saving throw or be frightened of me or another creature of my choice, for 1 hour. If the target succeeds, it doesn’t realize I tried to frighten it. (Archetype)
Spells
Spell save DC 14, Spell attack modifier +6.
Cantrips: prestidigitation (origin; Cha), mage hand, mending, minor illusion
Spells Known: bane, bestow curse, disguise self, fear, gift of gab, locate object, phantasmal force, sleep, suggestion
Edit: I forgot archetype! There's so much stuff in LU I didn't even remember that I was missing stuff!