You acquire a Burrower Mark II, and a Reclamax replaces it from the Center Deck. Can you return the Burrower Mark II to your hand?

Yes. You can return the Burrower Mark II. This is because acquiring a card is the first thing that takes place, meaning it is in the discard pile when the Fate effect for Reclamax resolves.

Posted in: Ascension: Chronicle of the Godslayer