Other opinions before I try to summarize the feedbacks / ideas of improvement ?
The problem with dipping weapons is manyfold. Unimmersive/unrealistic, somewhat micromanagement heavy, free resource that guarantees bonus damage and where the practical limitation for use is the player's patience/boredom level and finally superfluous given the large amount of D&D material with overlapping effect. This contributes to needless complexity to a game that already is prohibitively complex.
Example of D&D alternatives (all of which are more immersive):
Green-Flame Blade/Booming Blade (non-PHB cantrips)
Flame Blade (2nd level druid spell, suggested and already implemented)
Elemental Weapon (3rd level paladin spell)
Flame Arrows (3rd level druid, ranger, sorcerer, wizard spell)
Flame Tongue (magical weapons)
Alchemist Fire (flasks to coat weapons or explosive barrels)
Poison (flasks to coat weapons)
Oil (flasks to coat weapons)
Suggestions for change:
1. Limit to bows/crossbows only.
2. Only enflame parts of the weapons the wielder isn't touching (change fire bows to fire arrows/bolts).
3. Arrows/bolt enflammable by torch fire and larger sources of fire. Bonus action to perform, lasting one-two rounds.
4. REMOVE candle. This is the worst offender by far. Immersion breaking and clunky.
5. Implement oil flask. This could be an expandable resource used to enflame ALL weapons. Standard action to perform, lasting two rounds. One oil barrel could ie. be turned into 5 oil flasks.
6. No chance of setting enemies on fire unless vulnerable to fire.
7. Whatever the player can do that is mundane in nature, let the AI do. Goblins using fire arrows would be a homage to BG1's kobold commandos
