No Draw For Opponents

Pay 5 life: Destroy this enchantment. Any player may activate this ability but only during their turn. Discard a card: Target player puts a card from their hand on top of their library. Activate only as a sorcery.

At the beginning of your upkeep, you draw a card and lose 1 life.

As this artifact enters, choose a card name. Activated abilities of sources with the chosen name can't be activated unless they're mana abilities.