The Commander Urtet, Remnant of Memnarch isnt just a tongue twister, its also a very fun commander
It's great for finding a finisher during an infinite Mox Diamond combo, and since it's an optional effect, you can stop drawing at any time
Ureni is the Dragon-specific commander here, letting you take a peek at the top eight cards of your deck when he enters or attacks and snagging a Dragon creature from among those cards and putting it directly into play
Legality depends on the tournament format -- Frontline Devastator can be legal in some formats and banned or restricted in others
Infect is a deck built to capitalize on Bolt-less metagames, which you should see as an opportunity to bring back the Bolt
It would be very easy to focus a deck like this one around creating tokens and drawing tons of cards, especially because Esper has so much support for tokens already