Eye of the night

when Eye of the night enters the battlefield you
get a soul counter
when eye of the night leaves the battlefield draw
a card for each soul counter you have.
at the begging of you end step X damage to each opponent where X is the number of cards in your
hand do repeat this process for each time Eye of
the night left the battlefield this turn
-it has witnessed everything, every murder, every lie
it sees it all. why does it do it? thats the only mystery it
can't solve.