As an action, you can spend 2 ki points and roll a Martial Arts die. You regain a number of hit points equal to the number rolled plus your proficiency bonus.
Whenever you make a saving throw and fail, you can spend 1 ki point to reroll it and take the second result.
Whenever you finish a short or long rest, you can touch one weapon, focus your ki on it, and then count that weapon as a monk weapon until you use this feature again.
The chosen weapon must meet these criteria:
• The weapon must be a simple or martial weapon.
• You must be proficient with it.
• It must lack the heavy and special properties.
When you miss with an attack roll, you can spend 1 to 3 ki points to increase your attack roll by 2 for each of these ki points you spend, potentially turning the miss into a hit.