In the PHB, the Elemental Weapon spell has a stronger effect when cast using a spell slot of 5th level or higher, with a 7th-level slot described as providing the strongest effect. However, in the PHB the only class that has the spell on its spell list is the Paladin, which only gets up to 5th-level spell slots according to its advancement table.
What methods (if any) are available for a PC to be able to cast Elemental Weapon using a spell slot higher than 5th level?
Best Answer
There are several class options with access.
Although Paladins can cast it at 5th level maximum, the fact that they can't cast it at 6th level is irrelevant for this answer, since the 5th and 6th level versions of the spell have identical benefits. Since 7th, 8th, and 9th level castings all have the same effect, let's assume casting it at 7th level is the minimum relevant solution.
There are non-Paladin class or subclass options with access to elemental weapon and the ability to cast the 7th level version of the spell, including the following:
Magic items might make it happen.
If a character is capable of casting a scroll of 7th level elemental weapon or if some other magic item can be used to create the effect of a 7th level elemental weapon spell, the spell's description covers the higher level effect.