Faithful Butler

Players can not start the game with this card
in their library.
Persist, Blocks if able to
Whenever you take damage, untap Faithful
Butler and put a +1/+1 counter on it.
If a source would deal damage to you, prevent
half of that damage rounded down.
{t}{2}{w}: You get an emblem with "At the
beginning of your upkeep, you gain 2 life".
Devotion well past the point of obsession...