The Emerald/Sapphire deck is by no means bad, and I enjoyed utilizing the various Inventors, but it does seem to require a bit more strategizing, whereas the Amber/Ruby feels more aggressive
What you want out of a deck box is something solid, that protects your deck if you drop it, splash it, knock it over, or get it stuck
Its ultimate is a -7 which lets you play three cards from your opponent's exile without paying their mana costs
Notably, this triggers for each creature, not just one a turn, allowing you to potentially draw a ton of cards with just one attack
By following these tips, you can help to keep your cards safe and in good condition
Its attack trigger adds a pretty big amount of randomness to the game, especially as it can force opponents to discard combo pieces or key cards from their hands