Looking for a Card

I found this one interesting card while browsing through random mtg cards a couple weeks back, but I can't recall the name of it.

I'm not sure if I have the exact statistics of the card correct, but I think it goes like this.

2 mana for a 1/1 white creature
Ability: Creatures can't attack.

I might be making it up, but I'm pretty sure it was something like that. If someone could send me a link to it, that would great. Thanks. =)