The List

Steel of the Godhead

Enchant creature
As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)
As long as enchanted creature is blue, it gets +1/+1 and can't be blocked.

Duel Decks: Venser vs. Koth

Enchant creature
As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Damage dealt by the creature also causes its controller to gain that much life.)
As long as enchanted creature is blue, it gets +1/+1 and is unblockable.

Shadowmoor

Enchant creature
As long as enchanted creature is white, it gets +1/+1 and has lifelink. (Whenever it deals damage, its controller gains that much life.)
As long as enchanted creature is blue, it gets +1/+1 and is unblockable.