Flame Blade

2nd level Evocation
Casting Time
1 Bonus Action
Concentration, up to 10 minutes
Materials Required
Leaf of sumac

Spell Description

You evoke a fiery blade in your free hand. The blade is similar in size and shape to a scimitar, and it lasts for the duration. If you let go of the blade, it disappears, but you can evoke the blade again as a bonus action.

You can use your action to make a melee spell attack with the fiery blade. On a hit, the target takes 3d6 fire damage.

The flaming blade sheds bright light in a 10-foot radius and dim light for an additional 10 feet.

At Higher Levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d6 for every two slot levels above 2nd.

1st 2nd 3rd 4th 5th 6th 7th 8th 9th
Damage Dice 3d6 3d6 4d6 4d6 5d6 5d6 6d6 6d6
Min Damage 3 3 4 4 5 5 6 6
Average Damage 10.5 10.5 14 14 17.5 17.5 21 21
Max Damage 18 18 24 24 30 30 36 36
Lvl Dice Min Avg Max
2nd 3d6 3 10.5 18
3rd 3d6 3 10.5 18
4th 4d6 4 14 24
5th 4d6 4 14 24
6th 5d6 5 17.5 30
7th 5d6 5 17.5 30
8th 6d6 6 21 36
9th 6d6 6 21 36

Is Flame Blade Good?

Overall Rating: Orange. This means that flame blade is an OK spell.

Overall Notes: This does slightly more damage than flaming sphere on hit, but has a lot of caveats. First, you have to be within melee range to you can be attacked and lose concentration. Second, it takes your action to attack using flame blade whereas you are able to cast spells on subsequent turns after casting flaming sphere. Yes, flame blade has a longer duration, but that rarely comes up in 5e combat. If I were playing a druid, I would take flaming sphere over flame blade most times.