10/4/2004: Damage that is redirected is not dealt to the original creature or player, but it is dealt to the new creature or player.
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.