Is this homebrew feat, Divine Flame, balanced?

Is this homebrew feat, kindly created for my character by Akira_Kurusu, balanced? If not what would should be changed about it? It’s a unique feat based on my character’s background.

Divine Flame

You were consumed by fire at birth, allowing you to perform feats that would sear others beyond recognition.

Once per short rest, you can cause fire to erupt around you as a bonus action. These flames have no effect on you and last for 5 rounds. While active, you shed bright light for 10 feet and dim light for an additional 10 feet.

Any creature that hits you with a melee attack while the flames surround you takes 1d4 fire damage. Additionally, if you take damage as the result of an attack and can see the attacker within 60 feet of you, you can expend your reaction to cause the attacker to take 2d6+ your WIS modifier fire damage. When you use this reaction, you gain 5 temporary hit points.

(full disclaimer, I like the feat but was curious as to what other people thought of it and if it was well balanced or not)

China Bromine-antimony Flame Retardant Masterbatch

XS-HFFR-M9185G (FR Bromine-antimony Masterbatch for PA)
XS-HFFR-M9185G is a high concentration DBDPE & ATO flame retardant of functional masterbatch, which is for EVA resin. It could be widely used for PA6, PBT, PP, PE system of Brominated flame retardant, makes the final products with excellent and stable performance.
It is a commonality Bromine-antimony Flame Retardant Masterbatch.
Appearance–White particle
Bromine-antimony %%85±0.5
Volatility (105℃/2hr)%≤0.3
Base masterial–EVA
Physical Properties
● It is easily for processing and dispersion, compared to common powder type flame retardant of Bromine-antimony. With lower content of Bromine-antimony, but the same flame retardancy and better mechanical properties during processing.
● Meet the dust-free requirement, with very flexible operation of transportation and mixture. It could extremely increase the stability of product quanlity and decrease the processing cost and production spoilage.
● It could be extruded directly by single screw machine to decrease the processing cost.
● It should be universal, could be widely used for PA6, PBT, PP, PE systems, and such tougheness or strengthened flame retardant systems.
Usage Suggestion
The product could be mixed directly with raw materials before twin screw extruder processing.
Suggest to 1:1 to replace common powder type flame retardant of Bromine-antimony.
Package and Storage
Store in ventilated, dry place, avoid direct sunlight.
【Typical Application】
▲XS-FR-M9185G for PA6 (1:1 replace powder)
EBS + 168 + 10980.8%0.8%
ATO powder (99.8%)5%-
Antifogging agent0.2%0.2%
ProjectTest StandardATO powder (99.8%)XS-FR-M9185G
Tensile Strength, MPaGB/T 1040-06136146
Breaking Elongation, % GB/T 1040-063.163.78
Flexural Strength, MPaGB/T 9314-00190.5215.9
Flexural Modulus, MPaGB/T 9314-0087449087
HDT (1.82MPa), ℃GB/T1634.1-04199.7201.6
Izod Impact Strength (notched), KJ/m2GB/T 1043.1-0877.6108.4
Flammablity Grade (0.8mm)UL-94V-0V-0
Spiral length, cm–8.3314
The above data are only for reference. Customer should change the formula according to actual dosage and application, may contact our technical engineer for details.China Bromine-antimony Flame Retardant Masterbatch

Can green flame blade, slashing flourish, and sweeping maneuver be combined for a massive sweeping attack?

A character with the classes: Rogue(Arcane Trickster) lvl 3, Bard (College of Swords) lvl 4, Fighter (Battle Master) lvl 3, has:

  1. Green Flame blade.
  2. The Bardic College of Sword’s slashing flourish.
  3. Battle Master’s sweeping maneuver.

Can these be used in the same turn against the same 2 foes?

Character is fighting 2 opponents, Casts Green Flame blade and hits target and therefore the “jumping flame” portion of the spell hits the 2nd target as well, and since the attack hit the player decides to use both the flourish and sweep to deal even more damage to the second target.

Do both damage sources stack?

Can both be used at the same time?

Both the slashing flourish and the sweeping maneuver do not require an action nor bonus action to activate. For the attack, would both the flourish and maneuver apply should the player choose to use both resources?

Is it just down to a DM call?

What would be a more balanced spell for homebrew adaptation of Elemental Weapon and Flame Arrows?

What would be a more balanced spell for homebrew adaptation of Elemental Weapon and Flame Arrows?

I was thinking of adjusting a couple of existing spells, namely Elemental Weapon (PHB p.237) and Flame Arrows (XGtE p.156), so that it is more versatile for a druid/ranger player.

Version one:

Simply change Elemental Weapon so it can enchant a bow or crossbow, so Elemental Ranged Weapon.

A nonmagical ranged weapon you touch becomes a magic weapon. Choose one of the following damage types: acid, cold, fire, lightning, or thunder. For the duration, the weapon has a +1 bonus to attack rolls and ammunition used with the ranged weapon deal an extra 1d4 damage of the chosen type when it hits.

Version two:

Replace the damage type in Flame Arrows with an optional damage type, so the spell would be Elemental Arrows instead:

You touch a quiver containing arrows or bolts. When a target is hit by a ranged weapon attack using a piece of ammunition drawn from the quiver, the target takes an extra 1d6 elemental damage. Choose one of the following damage types: acid, cold, fire, lightning, or thunder. The spell’s magic ends on a piece of ammunition when it hits or misses, and the spell ends when twelve pieces of ammunition have been drawn from the quiver.

Which one of these spells would be more balanced, or are both options pretty balanced as a homebrew version of these spells?

I am leaning more towards the Elemental Ranged Weapon as it potentially is more useful to a druid/ranger player because it would not be limited to 12 arrows/bolts.

Thank you for your insight.

Can an upcast Continual Flame be dispelled by the Darkness spell?

Based on the comments of the accepted answer on this question Is there a spell that can create a permanent fire? and after doing a search for half an hour I couldn’t find an answer.

My scenario: I want to create a PC that does not have darkvision but wants to have a constant source of light. It is a cleric that wants to put the Continual Flame on his shield. He doesn’t want the Darkness spell to dispel the expensive spell on his shield so he upcasts it to 3rd level so that he can see in the darkness spell and in regular darkness as well.

Darkness (PHB page 230):

Magical darkness spreads from a point you choose within range to fill a 15-foot-radius sphere for the duration. The darkness spreads around corners. A creature with darkvision can’t see through this darkness, and nonmagical light can’t illuminate it. If the point you choose is on an object you are holding or one that isn’t being worn or carried, the darkness emanates from the object and moves with it. Completely covering the source of the darkness with an opaque object, such as a bowl or a helm, blocks the darkness. If any of this spell’s area overlaps with an area of light created by a spell of 2nd level or lower, the spell that created the light is dispelled.

Continual Flame (PHB page 227):

A flame, equivalent in brightness to a torch, springs forth from an object that you touch. The effect looks like a regular flame, but it creates no heat and doesn’t use oxygen. A continual flame can be covered or hidden but not smothered or quenched.

According to PHB page 201:

When a spellcaster casts a spell using a slot that is of a higher level than the spell, the spell assumes the higher level for that casting

If I cast Continual Flame at 3rd level, would Darkness dispel it? Would the flame shine in the Darkness?

Related questions:

Darkness vs Daylight Interactions Accepted answer suggests Continual Flame wins.

Does the Light cantrip cancel out the 2nd level Darkness spell? Accepted answer suggests Continual Flame wins.

Both of those questions and answers touch on this but neither has a solid answer for this scenario.

Can I Haste, booming blade, green flame blade and smite?

So I am new to Dungeons and Dragons, and for a one shot my DM is planning on a battle royal. What I want to do is a level 10 divine soul sorcerer and 2 levels in paladin.

First round I cast haste then run away. Next turn I will cast booming blade with quicken to make it a bonus action. Then cast green flame blade. Finally I attack using Divine smite. Do these effects stack to make one really powerful attack?

I feel it shouldn’t work, since booming blade reads:

As part of the action used to cast this spell, you must make a melee attack with a weapon against one creature within the spell’s range, otherwise the spell fails.

I feel like I need to attack right after casting.

Would I still be able to cast conjure barrage if I was also using flame arrow?

Conjure barrage specifies that the ammunition used to cast it must be non magical but I can’t find anywhere if an arrow under the effect of flame arrow is considered magical or not.

What I mean by that is, is the arrow in and of itself magical or does flame arrow just set it on fire as it’s launched as though it had been warped in cloth soaked in oil and lit (but without those steps)?

Would I still be able to use it as a medium to cast the conjure barrage spell or would I not be able to cast that till I lost concentration on flame arrow/the spell ran its course and if not would the effects stack?

Does Green Flame Blade work if I’ve cast shillelegh on my staff

Shillelegh says that your attacks become magical but Green Flame Blade says it works with a melee attack.

As part of the action used to cast this spell, you must make a melee attack with a weapon against one creature within the spell’s range, otherwise the spell fails.

Does the fact that my staffs attacks become magical stop Green Flame Blade from working?