We choose our commander based on their ability and then build a deck around that
For a more general rules overview, here's a reminder of how to play Magic: The Gathering
To make my example I will use the mechanics flanking and bushido
Tannuk, Memorial Ensign Tannuk, Memorial Ensign tacks on bits of damage with landfall, and it's relatively easy to trigger the card draw half with regularity with access to additional land drops, lander tokens, fetch lands, and inexpensive lands like Evolving Wilds and Warped Landscape
Now seen in a new light, Mangara, the Diplomat is a fantastic EDH card for White based decks
The Woodland showcase frames are spectacular, with an array of swirls and busy card art, but it feels very autumnal, and I love the subtle changes in the borders between different colors of cards