Amethyst cards focus on magical glimmers and effects while the Steel cards have a more combative approach
Thanks to its attack trigger, it can also fight and remove creatures that your opponents typically wouldnt defend with
Sure, a lot of decks would want STE over other cards, such as a Landline deck or a Snake deck, but the fact is that STE dominated Standard and our hearts for a while, but it never really stood the test of time
Flashback Spells are great spells to discard to Blood tokens if you cant or dont want to discard a land
Apart from the 5 basic lands, a Commander deck may not contain double cards and in the card selection for the deck you are also limited to the colors of your commander
Think Linvala, Shield of Seagate