Different Elf commanders like Nath, Freyalise, and Ezuri offer unique synergies and playstyles
(2021-04-16) The card exiled by the second ability is exiled face up
The player can also buy cards, check all the cards he/she has, get more cards via a password, make their own Duel Puzzles (only cards in the player's possession can be used), or look at the Forbidden/Limited Card List the player is using
While there is some variance (super-low-curve aggressive decks might have slightly less, while decks built on ramping or other land synergies might have slightly more), probably 80% of all the Commander decks I build have 37 lands
Either way, my Fireborn Knight can only attack one creature
First, the deck needs to be able to build a board presence while still gaining life