Forum:Most common card?

Well I've been thinking lately that there are a lot of cards that are valuable because only a certain number were made (Doomcaliber Knight for example) and I wondered what the most common card was. By that I mean, what is the cheapest card in terms of cost and easiest to find? Anyone got any ideas? --Bluedog (Talk) 04:31, 24 April 2009 (UTC)