Wrath and Greed are twin silver and brass knuckles respectively and share an attunement slot. Also, they cannot be used if they are 10ft apart.

While attuned at level 1: 

You gain a +1 to attack, damage rolls, and the number of ki points you have.

You gain 5ft of movement speed. You may cast each of these spells once per long rest, using your ki save dc: Hex and Armor of Agathis.

While attuned at level 5: 

You gain a +2 to attack, damage rolls, and the number of ki points you have.

You gain a +1 to AC and 10ft of movement speed. You may cast each of these spells once per long rest, using your ki save dc: Hex, Armor of Agathys, and Thunderous Smite.

While attuned at level 10: 

You gain a +3 to attack, damage rolls, and the number of ki points you have. When you roll an attack your crit range is +1.

You gain an extra attack, 15ft of movement speed, and a +2 to AC. You may use an action and place your fists on the ground to gain tremor sense with a range of 60ft so long as you are touching the ground.

You may cast each of these spells once per long rest, using your ki save dc: Hex, Armor of Agathys, Thunderous Smite, Freedom of Movement, and Staggering Smite. You may also cast these spells at what would be the highest for your level to a max of level 5.

Wrath:
You gain lightning damage on your unarmed strikes equal to your martial arts die and you do an additional die worth with consecutive attacks from either knuckle but this only applies on Wrath

Greed:
You deal additional Necrotic damage equal to your martial arts die and regain HP equal to the Necrotic damage dealt

Notes: Monk