The concepts are fun to speculate about, but I honestly can't see a nonbroken sword that gives protection from creatures or players making it to actual print
Some of this decks highlight cards are: Cruel Entertainment Grave Upheaval Kydele, Chosen of Kruphix Thrasios, Triton Hero Vial Smasher the Fierce #1
Deathrite Shaman still packs a ton of value and with Abzan sure to be a powerful archetype (see Siege Rhino below), Deathrite is likely going to find a home in a lot of decks
It's not until turn 5 that someone might have something big enough to attack and break through an 0/6
Not to mention it can keep coming back after your opponent kills it, making it even harder to really kill off
Its efficient, evasive, and scales perfectly with what your deck already wants to domake your opponents library disappear