I think it is too cheap for two reasons:
- It is like one card that PCs every weapon in your enemy's deck. Granted most decks don't include more than a few weapons. However, it is quite annoying when there are cards in your hand that you can't even dump.
- 2 is easily splashable, which seems like it would have too much impact on the metagame.
My intuition is it should be 5
| 4
, but I could be convinced otherwise.
Also, as it is written, it is a way to destroy immaterial weapons, which is iffy according to many people.
Otherwise, I like it.