1st-level Spell: Heavy Blow

Aspetheurgy (Transmutation)

You impart great heft to an unarmed strike or weapon you are holding. The first time you hit with a melee weapon attack using that weapon before the start of your next turn, your blow strikes with great force, and the attack deals an extra 1d10 bludgeoning damage to the target and must succeed a Constitution saving throw, or becomes staggered until the start of its next turn. While staffered this way, it cannot take reactions, and attacks against it have advantage.

• At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the extra damage increases by 1d6 for each slot level above 2nd.

Source: KCC (modified)

• Casting Time: 1 bonus action
• Range: Self
• Components: V, M (a weapon or unarmed strike that does bludgeoning damage)
• Duration: 1 round
• Ritual: No