Once this army is assembled, you can then use it to overwhelm your opponents in conjunction with mass board-buff and lord effects, or you can trade it in for more cards and life using Izonis activated ability
Not only does she also have resist, she has more Lore value, higher defense, and a stronger ability
Sorceries are more restrictive since they can only be cast during your main phases, whereas instants are generally better since there are more opportunities at which you can play them
That means if you are casting your mill win cons against a graveyard literate deck, which is very common in Commander and other kitchen table formats, that the milled stuff won't hit the graveyard or trigger their Syr Konrad, the Grim
The only issue I have with Amazon is that it charges a much higher price for the same product other retailers offer
That certainly makes the combo I described above easier to pull off