Transaction Rollback [RA04-EN105] Quarter Century Secret Rare P-110 Players may spend mana as

Players may spend mana as though it were mana of any color

but their effects are negated

OBLITERATE

[Activate Battle] [Opponent's Turn] [Once per turn] Swith 1 card in your Battle Area to Rest Mode : If you have 7 or fewer cards in your hand

Champion a Faerie (When this enters the battlefield

Transaction Rollback [RA04-EN105] Quarter Century Secret Rare P-110 Players may spend mana asSet: Quarter Century Stampede Card type: Normal Trap Rarity: Quarter Century Secret Rare Pay half your LP, then target 1 Normal Trap in your opponent's GY, except "Transaction Rollback"; this effect becomes that card's activation effect. You can banish this card from your GY and pay half your LP, then target 1 Normal Trap in your GY, except "Transaction Rollback"; this effect becomes that card's activation effect. You can only use 1 "Transaction