Ho-Oh LEGEND (111/123) [HeartGold & SoulSilver: Base Set]Set: HeartGold & SoulSilver: Base Set Type: Fire Rarity: Ultra Rare Retreat cost: Colorless,Colorless

Exchange control of those permanents

Set: Shadowmoor Type: Sorcery Rarity: Rare Cost: {6}{B} Starting with you

Set: Battle for Zendikar Prerelease Promos Type: Creature — Eldrazi Rarity: Rare Cost: {X} Endless One enters the battlefield with X +1/+1 counters on it

Set: Ixalan Type: Artifact Rarity: Rare Cost: {4} Instant and sorcery spells you cast cost {1} less to cast

Set: Unlimited Edition Type: Sorcery Rarity: Uncommon Cost: {1}{B} Search your library for a card

sacrifice Chromium unless you pay {W}{U}{B}

Set: Planeshift Type: Creature — Human Wizard Rarity: Rare Cost: {W}{U} As Meddling Mage enters the battlefield

Set: International Collectors’ Edition Type: Creature — Zombie Rarity: Rare Cost: {1}{B}{B} Other Zombie creatures have swampwalk

Sure enough

{T}: End the turn

that player discards their hand

*that's* what that switch does