Gone are the days people would run commanders just because they were the colours they wanted access to Card advantage every top commander provides card advantage in some way, whether its literally drawing cards, card selection via scrying or similar, bringing cards back from the graveyard, tutoring, or even producing permanents such as tokens
It works wonders when paired with cards like Supreme Verdict or Utter End, since you can recover a mix of removal, control effects, and threats all at once
More importantly, it means that players are able to carry over their unspent mana from a given turn rotation to the next
The process of creating your own card is simple
But, for those just preordering the Starter Kit today, it is also worth noting that each deck in the set is preconstructed, and doesn't feature boosters to open (so no surprise $600 cards)