RADIANT BOLT

When you take the Attack action while unarmed, your reach gains a 30 feet reach and deal radiant damage.

SUN SHIELD

You can take the Magic action to create an aura of bright light (30 feet) and dim light (+30 feet), or to end the aura. While the aura is active, you gain resistance to radiant damage. The light created by this aura is sunlight.

SEARING ARC STRIKE

When you take the Attack action while unarmed or with a monk weapon and hit, you can cause each creature behind the target in a 15-foot cone to make a Dexterity saving throw. On a failed save, a creature takes 2d10 radiant damage, plus an additional 1d10 as a level 10, 14, and 18 monk, and is blinded until the start of your next turn, on half damage on a successful one.

You can use this feature a number of times equal to your Wisdom modifier, and you regain all expended uses when you finish a short rest.

SUNBURST STRIKE

You can use take the Magic action, choose a point you can see within 150 feet of you, and cause each creature in a 30-foot-radius of that point to make a Constitution saving throw. On a failed save, a creature takes 3d10 radiant damage, plus 1d10 as a level 14 and 18 monk.

You can use this feature a number of times equal to your Wisdom modifier, and you regain all expended uses when you finish a short rest.

SUN SENTINEL

When a creature takes the Attack or Magic (Spellcast Attack) action against you and hits, you can take a reaction to halve the damage. Until the end of your next turn, when you take the Attack action while unarmed or with a monk weapon against that creature, the atack roll is made with advantage and deals an additional 4d10 radiant damage.

You can use this feature a number of times equal to your Wisdom modifier, and you regain all expended uses when you finish a short rest.

AURA OF SUNLIGHT

While under the effects of your Sun Shield feature, you gain immunity to radiant damage and resistance to fire damage, and you can cause any creature that ends its turn within 10 feet of you to take one 1d10 of radiant damage.