Light monsters can detach her to be protected from destruction once per turn, while Dark monsters can detach her at the start of Damage Step to destroy that monster with her effect
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
Abilities that trigger whenever a creature enters won't trigger
If your opponent has a bunch of creatures with unearth in the graveyard, you can ruin their reanimation plans by exiling everything, and creating two 2/2 bears isnt terrible in a pinch
Send 1 monster your opponent controls to the GY
it just wouldnt fit Illustrator : FlameGenesect741 Vote for this card Currently 3.00/5 1 2 3 4 5 (4 votes) View the gallery | Create my own card