Raging Draugr

As long as Raging Draugr is attacking prevent all combat damage that would be dealt to it.
Whenever a creature dealt damage by Raging Draugr this turn dies, put a +1/+1 counter on Raging Draugr.
While Raging Draugr has five or more +1/+1 counters on it, it has "When this creature dies, return it to the battlefield at the beginning of the next end step."