Sure, your opponent might have ten beasts in their green deck, but Callous Oppressor would still be able to steal their four goblins, three elves, and two other creatures that weren't beasts
Do the first for someone mana screwed to help them out (there is always someone) and then the last two to folks breaking an artifact like Skullclamp or Mind's Eye and then punish the other for holding a full grip
Even when hes not helming a deck, he still offers a lot in the 99 as a way to boost your creatures into the red zone
Whether you're here for FF6s Terra, FF7s Cloud, FF10s Tidus, or FF14s Warrior of Light, these sets are stacked with heroes and villains from across the series
For Commander, I think they are both at the very least solid cards but become much better the higher-power Commander you like to play
The recent spike in demand trumps the demand that caused this card to spike in the first place