3 Do not use this service if you need to receive the items immediately
I also have no idea why Earthquake was deemed better than other options in color (such as Jiwari, the Earth Aflame or just a simple Wrath of God)
While Deadeye Navigator does cost a hefty bit of mana to cast, once it's on the battlefield you can generally win the game with it
Dealing damage with Lathril makes that many 1/1 Elf Warrior tokens, so anything you can do to modify Lathrils power from either lord effects or auras or enchantments will give you tons more tokens
There are a few additional points it could have addressed within its scope such as demonstrating at least one trainer card, but on the whole it is a good introduction and there is other in-game guidance for concepts beyond those introduced in the mandatory tutorial
Some of my favorite memories from college were dorm drafts where one of us would walk to our local game store, buy a box of the latest set, and wed all gather that night to draft