So, I haven't had time to work on Enterprise cards lately, but I came up with this (untested) Attack card idea that I'd love feedback on. It uses Enterprise's Trade token mechanic, but like all Trade token cards the mechanic is pretty self-explanatory (cards refer to tokens; the tokens don't do anything outside of that).
Raider: Action–Attack, $5
+$2. Each other player reveals cards from his deck until he reveals one costing from $3 to $6 and discards the rest. He may pay a Trade token to discard that card. Otherwise, he trashes it and takes a Trade token.
It's like Saboteur in a lot of ways. It can't hit Provinces, though. Instead of downgrading a card into a cheaper card, it downgrades it into a Trade token. And you can then use that token to make the next Raider miss. Of course the interesting part is whether you
want to spend the Trade token on saving your card or keep it for when a more valuable card is attacked.
As always, feedback is very much appreciated.
EDIT: Upped the cost from $4 to $5.