Ok, I mentioned that I was thinking of redoing Redshirt's action, and I went ahead and did it on the image file. This both stops it from being strictly better than Pawn, and it strengthens the theme of the card.
(Redshirt. Cost: 2. Action: Choose one, or trash this card and choose three: +1 card, +1 action, +1 coin, +1 buy. Reaction: Trash this card from your hand to prevent an attack.)