Reaper, Bound to Death

Reach, Double Strike, Deathtouch
Reaper, Bound to Death can block up to 2 creatures per combat phase. If it does so, it gains first strike and loses double strike until the end of the turn.
Reaper, Bound to Death cannot be destroyed except by combat damage exceeding *, where * is 3 plus the total toughness of creatures it is blocking or being blocked by.