Phyrexian Etchings

When this enchantment enters, draw three cards.

At the beginning of your end step, you lose 2 life for each card in your hand.

At the beginning of your upkeep, put two eon counters on this enchantment, then mill cards equal to the number of eon counters on it.

If you would draw a card while your library has no cards in it, instead return a creature card from your graveyard to the battlefield. If you can't, you lose the game.

Enchant creature

Enchanted creature has infect.

At the beginning of your upkeep, put a -1/-1 counter on enchanted creature.

When this Aura is put into a graveyard from the battlefield, return it to its owner's hand.

At the beginning of your upkeep, this enchantment deals 1 damage to you.

Whenever a creature is put into an opponent's graveyard from the battlefield, you gain life equal to its toughness.

When this creature is put into your graveyard from the battlefield, at the beginning of the next end step, you lose 1 life and return this card to your hand.

At the beginning of your upkeep, exile a card from your graveyard.

Threshold — As long as there are seven or more cards in your graveyard, this enchantment has "Whenever a nontoken creature is put into your graveyard from the battlefield, you may pay . If you do, return that card to your hand."