Enchant land When Security Blockade enters, create a 2/2 white Knight creature token with vigilance. Enchanted land has "{T}: Prevent the next 1 damage that would be dealt to you this turn."
2012-10-01
You must target a land to cast Security Blockade. If that land is an illegal target when Security Blockade tries to resolve, it won't resolve and won't enter. You won't get the Knight token.