SCP 963 Dr. Jack Bright

Jack Bright enters the battlefield with X +1/+1
counters, where X is the number of times
it has been put onto the battlefield.
Whenever Jack Bright would be put into your
graveyard from anywhere, instead shuffle your
library, then put Jack Bright on the top of
your library.
Whenever Jack Bright attacks, remove a +1/+1
counter from it at the end of combat.