Does Void Rush banish the card before I play it?
Source: Riftbound Spiritforged FAQ Void Rush reveals the top two cards and lets me play one with a cost reduction. Is the card played directly from the deck, or is it banished first?

Reveal the top 2 cards of your Main Deck. You may play one of them, reducing its cost by . Draw any you did not play this way.
Artist: Kudos Productions
Card Set: Spiritforged
Source: Riftbound Spiritforged FAQ Void Rush reveals the top two cards and lets me play one with a cost reduction. Is the card played directly from the deck, or is it banished first?
I cast Void Rush and reveal Vengeance. I tap four runes to pay for Vengeance, which only costs two energy. I did not announce that I was floating the extra energy, but only realized afterward that I had overpaid. Do I still have two floating energy, even though players cannot voluntarily pay more than a spell's cost?
A player asked whether they understood Void Rush correctly: reveal 2, optionally play 1 for 2 less energy, draw the other if you play one, or just draw 2 if you play none. How does Void Rush's reveal-and-play effect work?