Besides MTG Arena, Reddit has its own subreddit to talk about Alchemy: r/MagicAlchemy
The Jolly Roger is this deck's secret weapon, both because its lack of lore will make your opponents underestimate it, and because its low cost allows you to surprise your opponents by playing it alongside other characters, giving them rush and allowing them to immediately interact with your opponent's characters
Your best character to play is Cursed Merfolk as it can quest for two lore (which is a lot for just a one-cost character)
Scene Boxes, on the other hand, include 3 Play Boosters and 6 mechanically unique cards, so they can be great to get for Commander and Eternal fans, specifically
First and foremost, theres the timeline and opportunity cost
What sets provide the Items package