Batman, The Lonely One

When Batman the Lonely One comes into play sacrifice all creatures you control with the friend subtype.
Sacrifice Creatures with the friend subtype at
your endstep
Batman the Lonely One gets X +X/+X counters
where X is the number of friends sacrificed by
Batman the Loney One
Batman the Lonely One must attack when able
"My friends died. I don't know what to do."