Jeremy Crawford: Darkness cares only about light created by a spell. Card Text: Equipped creature gets +2/+2 and has protection from white and from black. Matt Freeman: Does light from a magic weapon’s characteristics (not via a spell) count as magical that can illuminate a Darkness spell? That said Jeremy Crawford's statement on twitter implies that only spells cast by characters illuminate magical darkness, which I think makes for more engaging encounters. Considering Flame tongue is a rare sword, it would be up to your discretion to choose whether to assign it a level of 4 or 5. Armed with his magic sword and guided by a determined Princess.
In it rare scrolls (which are technically considered magic items) harbour spells from 4th and 5th level. One champion remains to battle the darkness and return the world to the light: Niko. Light & Darkness: Heroes of Calradia is a mod for the videogame Mount And Blade: Warband, which change the setting to add some Fantasy elements and features. Of course if light created by magical items can pierce if not dispel magical darkness we would need to calculate their level based on rarity, which to my knowledge is not present.Ī good reference however is the Spell scroll conversion on page 200 of the DMG. All light sources from magical spells and effects can illuminate a Darkness spell and that includes light from items such as Flame Tongue ( RAW).