The Pokmon card pack trick lets you save the best for lastjust open the pack, remove the code card from the back, and move the last 3 or 4 cards (depending on your set) to the front to rearrange your pack
Relic of Sauron is also very fitting in this deck because we can get not only 2 mana in any combination but also the card advantage and filtering option
Log in using your MTG Arena details, and on the right-hand side of your account dashboard, you'll find a nice, big 'Redeem a code' box
While cards like Vivi challenge the idea somewhat, the fact is that Wizards of the Coast, on the whole, is much more conservative when it comes to designing cards these days
Past the commanders, cards like Chasm Skulker allow you to build piles of counters just for drawing cards, so when it dies, you can create X 1/1 blue squids, where X is how many counters you had