I'd say it is garbage because it's a zero point card. Even in the situation described it "only" deals with the defender status enabling you to attack the other cards again. While this can be a good thing it is still zero points. And then there are all the other games where Pellar is just so much better. If you don't need the purify at all the card is terrible like card disadvantage. And I honestly can say that I never saw it in action.On Spring Equinox you claim no one uses it because it's garbage.
Now hold on just a minute! I've seen the crime faction deploy a defender - two scarab beetles as defenders. Spring Equinox can defeat that defender with ease (and all others), yet you claim it's garbage?