This dual class spell for Warrior and Rogue is basically Execute combined with Assassinate. It's also quite cheap at just 3 mana, so it should definitely be on any list that relates to those two classes.
Coerce will be especially popular among Control Rogue players, who always complain about the lack of decent removal spells for their class. Well, it looks like their prayers have been answered.
Warrior players could also consider at least one copy Coerce, but they actually have enough removal spells as is, so it's up to your individual playstyle.