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 Rollback effect per turn, and only once that turn.