Vampiric Link

Oracle Text

Enchant creature

Whenever enchanted creature deals damage, you gain that much life.

Card Rulings

2/1/2007 This is the timeshifted version of Spirit Link.
4/1/2008 You gain life for all damage which is not prevented, regardless of what the creature damages (player or another creature) or the toughness of the blocking creature. If you put this on a 5/5 and it is blocked by a 1/1, you still gain 5 life.