Millstone [Antiquities] Revised Edition except it's an enchantment in

except it's an enchantment in addition to its other types

Set: Zendikar Promos Type: Creature — Angel Rarity: Rare Cost: {2}{W}{W} Flying

Set: Avacyn Restored Type: Land Rarity: Rare As Cavern of Souls enters the battlefield

Set: Beta Edition Type: Sorcery Rarity: Rare Cost: {X}{B} Target player discards X cards at random

which can be quite unsettling for their prey

Millstone [Antiquities] Revised Edition except it's an enchantment inSet: Antiquities Type: Artifact Rarity: Uncommon Cost: {2} {2}, {T}: Target player mills two cards. More than one mage was driven insane by the sound of the Millstone relentlessly grinding away.