curse of forgetfulness

Enchant player
Enchanted players maximum hand size is 0.
Whenever enchanted player draws cards, they
discard that many cards and lose that much life.
At the beginning of enchanted player's end step,
that player puts the top X cards of their library
into their graveyard, where X is the number of
cards in their graveyard that weren't put there
this turn.
{p/u}: each player draws a card then reveals it.