If you're looking for a competitive ETB list, Brago, Chulane, and Yarok are all much better in my opinion
The Most Important Card If you look over the list of coin flip cards available, you'll notice that almost all of them are terribleexcept for one major exception, which happens to be one of the most powerful cards in Commander: Mana Crypt
While it's not a requirement to play the game casually with your friends, if you have valuable cards, or if you're playing in a tournament, you absolutely need to have them
They might show a planeswalker with larger eyes or more fluid lines in their clothing
You can have up to 4 copies of each card, and its generally best to go ahead and include the maximum number of copies of each card to increase your chances of drawing the cards you want and to focus your deck on a specific play style or goal
Aggro The most famous strategy historically for white is aggro