Angelic Halo

Angelic Halo is a immaterial magical item made from pure celestial energy. When you gain this item, you will become attuned to it and rather than you carring or wearing it, it is imbued into yourself.

While attuned to Angelic Halo, you have resistance to radiant damage at all times and can cast Detect Evil and Good at will.

While attuned to Angelic Halo, you can use bonus action to enter (or end) Angelic Form, which gives you following benefits:
- Immunity to radiant damage
- Truesight
- Flying speed of 60ft.
- Ability to cast Sacred Flame as level 17 spellcaster at will.
- Spend 1 charge to cast Sunbeam at 6th level. Angelic Halo has 3 charges, that all recharge when you take a long rest.
- Ability to cast Cure Wounds at 3rd level at will.
- You shed bright light in 30ft and dim light in another 30ft radius. When any undead creature enters this light or starts it's turn standing in the light, it need to succeed on Constitution save DC 18 or be blinded for 1 turn.
- All your attacks (melee, ranged, spell, natural and unarmed) deal additional 1d8 radiant damage.

Since evoking Angelic Form is puting a lot of stress on your mortal body, you can stay in this form only for a certain period, which is a number of minutes equal to your Constitution modifier (minimum 30 seconds / 5 turns), per short rest. If you try to spend more time in this form, you gain 1 level of exhaustion for every started period beyond the first one. If you fall unconscious, the Angelic Form ends.

Notes: Immunity: Radiant, Sense: Truesight, Set: Speed (Flying), Resistance: Radiant, any non-evil character, Buff, Combat, Warding, Headwear