I hope this has helped to break down the different options available, and made things a little clearer for your current decks or future builds
Breya's Apprentice is a powerful card for an artifact-based deck like Tempered Steel, putting two artifact bodies on the battlefield for just three mana
Its a lot of fun to play, but a horrible thing to fight against
Neyali, Suns' Vanguard provides a substantial buff to your tokens with double strike while drawing you a bunch of cards each turn to keep the pressure up, creating a one-two punch your opponents will struggle with
This is because it has the lowest attack, making it easy for you to beat over when it comes time to attack
Each pack contains six common cards, three uncommon cards, two rare or higher level cards, and one foil card (random rarity level)