Ampharos (105/123) [HeartGold & SoulSilver: Base Set]Set: HeartGold & SoulSilver: Base Set Type: Lightning Rarity: Ultra Rare Retreat cost: Colorless,Colorless

each other player sacrifices a nonland permanent

and you may cast the copy without paying its mana cost

Set: Invasion Type: Enchantment Rarity: Uncommon Cost: {1}{G}{W} Whenever a creature enters the battlefield under your control

Set: Platinum: Supreme Victors Type: Fire Rarity: Rare Retreat cost: Colorless

Mogis deals 2 damage to that player unless they sacrifice a creature

Set: Commander Anthology Type: Artifact Rarity: Rare Cost: {3} You may activate abilities of creatures you control as though those creatures had haste

Set: Magic Origins Prerelease Promos Type: Creature — Human Wizard Rarity: Rare Cost: {3}{U}{U} Whenever a creature an opponent controls becomes the target of a spell or ability you control

Set: Ravnica Allegiance Promos Type: Land — Forest Island Rarity: Rare ({T}: Add {G} or {U}

on the other hand

Set: Platinum: Arceus Type: Fire Rarity: Ultra Rare Retreat cost: Colorless

Set: XY: BREAKpoint Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

Set: Limited Edition Alpha Type: Sorcery Rarity: Uncommon Cost: {2}{W}{W} Return target creature card from your graveyard to the battlefield