Binding Smite

The next time you hit a creature with a weapon attack before this spell ends, the weapon becomes covered with growing jade protrusions as you strike. The attack deals an extra 1d8 necrotic damage to the target and they must make a Constitution saving throw. On a failure, a creature is hindered by jade formations for 1 minute, or until it or another creature within reach of it uses an action to break away the jade. A creature hindered by jade has its speed reduced to 0.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the extra damage increases by 1d8 for each slot level above 1st.