Class Features:

Monk, level 1:
◆ Martial Arts (Monk 1, PHB 78) [1d4]
Monk weapons: any simple melee (not two-handed/heavy), unarmed strike, shortsword
With monk weapons, I can use Dex instead of Str and use the Martial Arts damage die
When taking an Attack action with these, I get one unarmed strike as a bonus action
◆ Unarmored Defense (Monk 1, PHB 78)
Without armor and no shield, my AC is 10 + Dexterity modifier + Wisdom modifier

Level 2:
◆ Ki (Monk 2, PHB 78) [2× per short rest]
I can spend ki points to fuel special actions (see third page)
I need to meditate for at least 30 min of a short rest for that short rest to restore ki
◆ Unarmored Movement (Monk 2, PHB 78) [+10 ft]
Speed increases and eventually lets me traverse some surfaces without falling as I move
◆ Flurry of Blows (Ki Feature, PHB 78) [1 ki point]
After taking the Attack action, I can make 2 unarmed attacks as a bonus action
◆ Patient Defense (Ki Feature, PHB 78) [1 ki point]
As a bonus action, I can take the Dodge action
◆ Step of the Wind (Ki Feature, PHB 78) [1 ki point]
As a bonus action, I can either Dash or Disengage; My jump distance doubles when I do so
◆ Deflect Missiles (Monk 3, PHB 78) [1d10 + 3 + Dexterity modifier; 1 ki to throw]
As a reaction, I can reduce ranged weapon attack damage done to me
If the damage is negated, I catch and may throw it back (20/60 ft) as a monk weapon
◆ Hands of Healing (Way of Mercy 3, TCoE 49) [1 ki point; heal 1d4 + Wisdom modifier]
As an action, I can spend 1 ki point to touch a creature and restore a number of its HP
When I use Flurry of Blows, I can do this instead of one unarmed strike (no extra ki cost)
◆ Hands of Harm (Way of Mercy 3, TCoE 50) [1 ki point; 1d4 + Wis mod necrotic damage]
When I hit a creature with an unarmed strike, I can spend 1 ki point to deal extra damage
I can use this feature only once per turn
◆ Implements of Mercy (Way of Mercy 3, TCoE 49)
I gain proficiency with Insight, Medicine, and herbalism kit; I have a special Merciful Mask

Racial Traits:
Tortle (+2 Strength, +1 Wisdom)
Claws: I can use my claws to make unarmed strikes dealing 1d4 slashing damage.
Hold Breath: I can hold my breath for up to 1 hour at a time.
Natural Armor: I have a base AC of 17, but I can't add my Dex to it or wear armour.
Shell Defense: As an action, I can withdraw into my shell and gain +4 AC and adv. on Str and Con saves, but I count as prone, have speed 0, have disadv. on Dex saves, and can't take reactions. The only action I can take is a bonus action to emerge from the shell.

Background Feature:
Discovery
The quiet seclusion of my extended hermitage gave me access to a unique and powerful discovery. The exact nature of this revelation depends on the nature of my seclusion. It might be a great truth, a hidden site, a long forgotten fact, or unearthed some relic of the past that could rewrite history.

Herbalism kit (x2)
Common clothes
Blanket
Scroll case

Backpack, with:

Bedroll

Mess kit

Tinderbox

Torches (10)

Rations, days of (8)

Waterskin

Hempen rope, feet of (50)

Darts (10)

The leader of my community had something wise to say on every topic, and I am eager to share that wisdom.

Greater Good: My gifts are meant to be shared with all, not used for my own benefit. (Good)

I'm still seeking the enlightenment I pursued in my seclusion, and it still eludes me.

Now that I've returned to the world, I enjoy its delights a little too much.