At 14th level, Stone Sorcerers (from Unearthed Arcana: Sorcerer) get the Stone's Edge feature, which states:
When you cast a spell that deals damage, choose one creature damaged by that spell on the round you cast it.
Does this work with cantrips, or is it exclusive to 'leveled' spells only?
Also, if I use booming blade and thunderous smite in one attack, does the Stone's Edge ability stack?
Best Answer
Yes, Stone's Edge affects Cantrips
If the feature did not affect Cantrips, it would expressly say so.
Yes, Stone's Edge can affect multiple spells
There's no language stating this damage may only be dealt once per turn, so it must be able to be applied to both spells.