Bitter Chill

"Doesn't untap during its controller's untap step" is one of the oldest pseudo-removal templates in the game: the creature stays tapped, out of combat and unable to block, but never actually leaves, which has always made these effects hostage to their own permanence. Bounce the creature or crack the Aura with Disenchant and the whole investment evaporates for nothing. This design patches that hole from the back end. When the Aura hits the graveyard (the enchanted creature dies, gets bounced, gets exiled, or the opponent simply blows up the Aura), you may pay to scry and draw. The tap-plus-lockdown line does the tempo work up front; the graveyard trigger converts a broken soft-lock into card advantage the moment it breaks. That reframing matters more than the rate. A Pacifism-style effect is only as good as it is durable, and durability is exactly what this class of card can never promise. By paying you off precisely when the enchantment fails at its one job, the design refuses to be a two-for-one against you: the answer that removes your lock also hands you a replacement card. The optional cost is the honest wrinkle. The payoff arrives only after the lockdown has already ended, so declining it isn't a tempo choice; it's an admission that the extra mana is spoken for elsewhere. The card advantage is real, but unlike most sacrificed-permanent cantrips, it isn't free.