Eldritch Strike, Variant (5e Spell)
From D&D Wiki
|Casting time:||1 action|
|Range:||Self (5-foot radius)|
|Components:||S, M (a melee weapon worth at least 1 sp)|
You brandish the weapon used in the spell’s casting and make a melee attack with it against a creature within 5 feet of you. On a hit, the target suffers the weapon attack’s normal effects and becomes cursed by eldritch energy. If they attack you on their turn, they take force damage equal to your spellcasting ability modifier.
At Higher Levels. At 5th level, the melee attack deals an extra 1d8 force damage to the target on a hit. This damage roll increases by 1d8 at 11th level (2d8) and 17th level (3d8).