"Choose an enemy [Elite as well]... as the target of this attack."
"You may [i.e. you may choose not to] move to that enemy's location."
Remote damage against boss monsters and humans. Every. Single. Campaign has Elite enemies that don't spawn on you directly, either because they start a pursuit from a distance, or because they're guarding a location of interest. Springfield M1903 (with current taboo) and Telescopic Sight can only remotely target non-Elite enemies. Marksmanship and Dynamite Blast are the only cards I know off that deal remote damage to Elite enemies. As a result Fang of Tyr'thrha is occupying a relative unexplored area of fighter tech, and its pushing boundaries in the process. Here's hoping it doesn't trivialize certain scenarios.
EDIT: Oh wait, in single player games where "4 health per player" means "4 health", it DOES trivialize certain scenarios.