Backlash

D&D 2024 spell: Backlash. Source: Forgotten Realms: Heroes of Faerûn. level 4, school Abjuration, casting time 1 reaction, which you take in response to taki...

You ward yourself against destructive energy, reducing the damage taken by 4d6 plus your spellcasting ability modifier. If the triggering damage was from a creature within range, you can force the creature to make a Constitution saving throw. The creature takes 4d6 Force damage on a failed save or half as much damage on a successful one.

At Higher Levels

Using a Higher-Level Spell Slot The damage reduction and Force damage from this spell both increase by 4d6 for every spell slot level above 4.

Source: Forgotten Realms: Heroes of Faerûn, p. 142 - Licenses and attribution