How does Void Rush work? Do you banish cards, and what happens if you can't play the chosen card?

Ruling: As currently printed, Void Rush reveals the top 2 cards of your deck (they remain in the deck), you may play one with cost reduced by 2 energy, then draw any cards you didn't play. However, this card is expected to receive errata to first banish the card you intend to play before playing it, similar to other effects that play cards from deck.

Sequence:

• Reveal top 2 cards of your Main Deck
• Choose whether to play one of them (cost reduced by 2 energy) or neither
• Draw all cards you didn't play
• If you chose to play a card, it finalizes after the spell resolves

Nuances:

• You are not required to play either card even if you could legally do so
• If both revealed cards are spells without legal targets, you cannot play either and must draw both
• The card is expected to receive errata to banish the chosen card first, to handle situations where a card cannot be finalized (e.g., a unit with mandatory costs that can't be paid). Without this errata, there is no clear zone to return an unplayable card to, since it was played from deck but drawing has already occurred
• Void Rush does trigger Legion effects, as it plays a card
• Noxus Hopeful would be free when playing Void Rush (as it counts as playing a card after another)