SCP 5033 Pampered Sheep

Indestructible
{4}: SCP 5033 deals damage equal to its power to
all creatures, players, and planeswalkers. Activate
only once each step.
Whenever SCP 5033 is dealt damage from a
source not named SCP 5033, it deals damage
equal to its power to all creatures, players, and
planeswalkers.