Arbiter of the Ideal [Born of the Gods Prerelease Promos]Set: Born of the Gods Prerelease Promos Type: Creature Sphinx Rarity: Rare Cost: {4}{U}{U} Flying Inspired Whenever Arbiter of the Ideal becomes untapped, reveal the top card of your library. If it's an artifact, creature, or land card, you may put it onto the battlefield with a manifestation counter on it. That permanent is an enchantment in addition to its other types.

When Alabaster Dragon dies

Set: Friday Night Magic 2002 Type: Instant Rarity: Rare Cost: {1}{U}{U} Counter target spell

that creature's controller sacrifices it

Set: Jungle Unlimited Type: Water Rarity: Rare Retreat cost: Colorless

Set: Team Rocket 1st Edition Type: Grass Rarity: Common Retreat cost: Colorless

Set: Scars of Mirrodin Type: Land Rarity: Rare Copperline Gorge enters the battlefield tapped unless you control two or fewer other lands

Set: Celebrations: 25th Anniversary - Classic Collection Type: Lightning Rarity: Promo Retreat cost: Colorless

Each scar on its hide is a badge of honor

Set: Sun & Moon: Celestial Storm Type: Grass Rarity: Secret Rare Retreat cost: Colorless

Set: Time Spiral Timeshifted Type: Creature — Angel Rarity: Rare Cost: {1}{U}{R}{W} Flying

Set: Sun & Moon: Forbidden Light Type: Fairy Rarity: Secret Rare Retreat cost: Colorless

If you can't sacrifice a creature