Blueflame Candlestick

Wondrous Item, Artifact, (requires attunement)

This brass candlestick holds a white wax candle, atop which burns a magical blue flame. The flame cannot be quenched in water nor suffocated by lack of air, and waxes and wanes almost as if breathing. This candlestick can be used as a spellcasting focus. While holding this candlestick, you gain a +1 bonus to spell attack rolls and to the saving throw DCs of spells that deal fire damage.

While attuned to the candlestick, all fire damage you do takes on the blue flame appearance, ignores resistance to fire damage, and treats immunity to fire damage as vulnerability instead.

As a bonus action while holding the candlestick, you can cause the candle's flame to take on the shape of any melee weapon that does not have the two-handed property. Attacks made with this weapon have a +1 bonus to attack and damage rolls, and deal fire damage instead of their normal damage type.

Sentience. The Blueflame Candlestick is a sentient true neutral object with an Intelligence of 19, a Wisdom of 16, and a Charisma of 16. It has hearing and darkvision out to a range of 120 feet. While attuned to this item, it speaks to you telepathically in your mind.

Blueflame Sensor. The Blueflame Candlestick can create a blue flare in an unoccupied space it can see within 120 feet of it. Anyone who touches the sensor takes 1d4 fire damage. The Blueflame Candlestick can have more than 1 sensor, and can see and hear as if it were in its place.

Fuel the Flames. Whenever you kill a creature with fire, the Blueflame Candlestick gains one point of nourishment. When you take a long rest, the candlestick loses a point of nourishment for each sensor it currently has. If the candlestick does not have enough nourishment to sustain all its sensors, it can attempt to steal life from you. Make a DC 18 Constitution saving throw. On a failed save, you regain 1 less hit dice when you complete the long rest, and the Blueflame Candlestick gains one point of nourishment. It can attempt this a number of times equal to your level. If it does not have enough nourishment for its sensors, it must snuff out sensors until it can nourish all of them.