Elemental Strike

You touch a weapon or piece of ammunition enchanting it with elemental magic. This lasts for 2 rounds, until it hits a target, or touches the ground. The attack deals an extra 1d6 damage of your choice to the target (Choose from Fire, Thunder, Lightning, Cold, Acid, or Poison)

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