Deck facedown in their respective areas
However, as these are some of the most rare cards of each set, this can be rather time-consuming and unreliable
If you activated this card while your opponent controlled no cards, for the rest of this turn you cannot activate cards, or the effects of cards, with the same original name as that banished card
Or, in other words, youre adding four mana to the cost of one of your spells to fix your mana for that spell
Bloodbraid Challenger is close enough to Bloodbraid Elf to not stain the name, and at a mana value one greater, with the ability to escape, the Challenger hits differently and I'm OK with that
If a player does, counter Temporal Extortion