Modified is more of a nice bonus for doing something you were already going to do, rather than it being something you would build around specifically
The playability of this card completely depends on the metagame, while the more typical sweepers can be dependable regardless of the opponent
Sure, you have to deal combat damage with a Dino to pay the prowl cost, but Dinosaurs are all about attacking, so that should be a trivial feat to achieve
Instead, they were carefully balanced and play-tested to guarantee that they are on equal footing and no one deck has a clear advantage
Enchantment Enchantment (CTRL to add secondary) Instant Suspended Sentence Destroy target creature an opponent controls
It still holds up as a black mana doubler, and Im always satisfied with how effective extort is in multiplayer games