Conversion [Alpha Edition] Artifact Creature Set: Champions of Kamigawa Type:

Set: Champions of Kamigawa Type: Legendary Land Rarity: Rare Boseiju

Set: Antiquities Type: Creature — Phyrexian Demon Rarity: Rare Cost: {4}{B}{B} Flying (This creature can't be blocked except by creatures with flying or reach

Set: Eternal Masters Type: Instant Rarity: Rare Cost: {W} Search your library for an artifact or enchantment card

More than one mage was driven insane by the sound of the Millstone relentlessly grinding away

(For example

Conversion [Alpha Edition] Artifact Creature Set: Champions of Kamigawa Type:Set: Alpha Edition Type: Enchantment Rarity: Uncommon Cost: {2}{W}{W} At the beginning of your upkeep, sacrifice Conversion unless you pay {W}{W}. All Mountains are Plains.