A standard deck that doesn't use any of the last 3 expansions... Isn't that all of Standard with the exception of Basic, and Classic?
I'd say some variation of Combo Priest is the only thing that will get you anywhere. Most of the current meta is heavily saturated with the last expansion.
Nope. Last three expansions is expansions from year of Dragon, but we still have expansions from year of Raven (or at least for next month or probably less). + Interesting is if he consider Galakronds package as 2 expansions or only one. Becose then he could choose from first lackey expansion and build Token (mech) Druid, Murloc Shaman or Murloc Paladin (probably even more, as most of core cards from off decks was in first expanse).