The showcase magnified treatment is exactly what it sounds like: a closer look at the clues, investigation, and events at the core of the Murders at Karlov Manor story
it's just one that, for the most part, will result in slow, methodical turns if you start thinking about the various ways you can win
"Retrace" means "You may cast this card from your graveyard by discarding a land card as an additional cost to cast it." Casting a card by using its retrace ability works just like casting any other spell, with two exceptions: You're casting it from your graveyard rather than your hand, and you must discard a land card in addition to any other costs
Noctowl's second move is called Fly, this move requires three colorless energy cards and does 50 damage, however when using this move you must flip a coin, if you get tails the move does nothing, if you get heads, all effects of your opponent's attack during their turn are prevented